Home / 157,855.80-236,438.10-140,345.40

Finding the Fourth Proportional to 157,855.80, 236,438.10 and 140,345.40

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Solution

The fourth proportional to 157,855.80, 236,438.10 and 140,345.40 is: 210,210.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,855.80 : 236,438.10 = 140,345.40 : x
  2. Step 2: Convert to fraction form
    157,855.80/236,438.10 = 140,345.40/x
  3. Step 3: Cross multiply
    157,855.80x = 236,438.10 × 140,345.40
  4. Step 4: Simplify right side
    157,855.80x = 33,182,999,719.74
  5. Step 5: Solve for x
    x = 33,182,999,719.74/157,855.80
  6. Step 6: Final answer
    x = 210,210.84

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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.