Home / 157,010.30-235,515.45-139,807.10

Finding the Fourth Proportional to 157,010.30, 235,515.45 and 139,807.10

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Solution

The fourth proportional to 157,010.30, 235,515.45 and 139,807.10 is: 209,710.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,010.30 : 235,515.45 = 139,807.10 : x
  2. Step 2: Convert to fraction form
    157,010.30/235,515.45 = 139,807.10/x
  3. Step 3: Cross multiply
    157,010.30x = 235,515.45 × 139,807.10
  4. Step 4: Simplify right side
    157,010.30x = 32,926,732,069.70
  5. Step 5: Solve for x
    x = 32,926,732,069.70/157,010.30
  6. Step 6: Final answer
    x = 209,710.65

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1.5x scale

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.