Home / 158,660,111.80-237,990,167.70-90,509,692.60

Finding the Fourth Proportional to 158,660,111.80, 237,990,167.70 and 90,509,692.60

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Solution

The fourth proportional to 158,660,111.80, 237,990,167.70 and 90,509,692.60 is: 135,764,538.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,660,111.80 : 237,990,167.70 = 90,509,692.60 : x
  2. Step 2: Convert to fraction form
    158,660,111.80/237,990,167.70 = 90,509,692.60/x
  3. Step 3: Cross multiply
    158,660,111.80x = 237,990,167.70 × 90,509,692.60
  4. Step 4: Simplify right side
    158,660,111.80x = 21,540,416,920,349,448
  5. Step 5: Solve for x
    x = 21,540,416,920,349,448/158,660,111.80
  6. Step 6: Final answer
    x = 135,764,538.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.