Home / 157,008.80-235,513.20-139,805.60

Finding the Fourth Proportional to 157,008.80, 235,513.20 and 139,805.60

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Solution

The fourth proportional to 157,008.80, 235,513.20 and 139,805.60 is: 209,708.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,008.80 : 235,513.20 = 139,805.60 : x
  2. Step 2: Convert to fraction form
    157,008.80/235,513.20 = 139,805.60/x
  3. Step 3: Cross multiply
    157,008.80x = 235,513.20 × 139,805.60
  4. Step 4: Simplify right side
    157,008.80x = 32,926,064,233.92
  5. Step 5: Solve for x
    x = 32,926,064,233.92/157,008.80
  6. Step 6: Final answer
    x = 209,708.40

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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.