Home / 100,675.40-151,128.30-59,145.80

Finding the Fourth Proportional to 100,675.40, 151,128.30 and 59,145.80

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Solution

The fourth proportional to 100,675.40, 151,128.30 and 59,145.80 is: 88,786.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,675.40 : 151,128.30 = 59,145.80 : x
  2. Step 2: Convert to fraction form
    100,675.40/151,128.30 = 59,145.80/x
  3. Step 3: Cross multiply
    100,675.40x = 151,128.30 × 59,145.80
  4. Step 4: Simplify right side
    100,675.40x = 8,938,604,206.14
  5. Step 5: Solve for x
    x = 8,938,604,206.14/100,675.40
  6. Step 6: Final answer
    x = 88,786.38

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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.