Home / 124,669.12-172,036.56-76,925.92

Finding the Fourth Proportional to 124,669.12, 172,036.56 and 76,925.92

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Solution

The fourth proportional to 124,669.12, 172,036.56 and 76,925.92 is: 106,153.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,669.12 : 172,036.56 = 76,925.92 : x
  2. Step 2: Convert to fraction form
    124,669.12/172,036.56 = 76,925.92/x
  3. Step 3: Cross multiply
    124,669.12x = 172,036.56 × 76,925.92
  4. Step 4: Simplify right side
    124,669.12x = 13,234,070,651.64
  5. Step 5: Solve for x
    x = 13,234,070,651.64/124,669.12
  6. Step 6: Final answer
    x = 106,153.56

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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.