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Finding the Fourth Proportional to 124,659, 172,030.33 and 68,070.38

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Solution

The fourth proportional to 124,659, 172,030.33 and 68,070.38 is: 93,937.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,659 : 172,030.33 = 68,070.38 : x
  2. Step 2: Convert to fraction form
    124,659/172,030.33 = 68,070.38/x
  3. Step 3: Cross multiply
    124,659x = 172,030.33 × 68,070.38
  4. Step 4: Simplify right side
    124,659x = 11,710,169,159.56
  5. Step 5: Solve for x
    x = 11,710,169,159.56/124,659
  6. Step 6: Final answer
    x = 93,937.62

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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.