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Finding the Fourth Proportional to 125,007.49, 172,510.79 and 67,646.80

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Solution

The fourth proportional to 125,007.49, 172,510.79 and 67,646.80 is: 93,352.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,007.49 : 172,510.79 = 67,646.80 : x
  2. Step 2: Convert to fraction form
    125,007.49/172,510.79 = 67,646.80/x
  3. Step 3: Cross multiply
    125,007.49x = 172,510.79 × 67,646.80
  4. Step 4: Simplify right side
    125,007.49x = 11,669,802,570.74
  5. Step 5: Solve for x
    x = 11,669,802,570.74/125,007.49
  6. Step 6: Final answer
    x = 93,352.83

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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.