Home / 123,248.48-170,084.12-72,291.36

Finding the Fourth Proportional to 123,248.48, 170,084.12 and 72,291.36

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Solution

The fourth proportional to 123,248.48, 170,084.12 and 72,291.36 is: 99,762.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,248.48 : 170,084.12 = 72,291.36 : x
  2. Step 2: Convert to fraction form
    123,248.48/170,084.12 = 72,291.36/x
  3. Step 3: Cross multiply
    123,248.48x = 170,084.12 × 72,291.36
  4. Step 4: Simplify right side
    123,248.48x = 12,295,612,349.20
  5. Step 5: Solve for x
    x = 12,295,612,349.20/123,248.48
  6. Step 6: Final answer
    x = 99,762.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.