Home / 187,089.29-280,505.89-67,143.58

Finding the Fourth Proportional to 187,089.29, 280,505.89 and 67,143.58

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Solution

The fourth proportional to 187,089.29, 280,505.89 and 67,143.58 is: 100,669.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,089.29 : 280,505.89 = 67,143.58 : x
  2. Step 2: Convert to fraction form
    187,089.29/280,505.89 = 67,143.58/x
  3. Step 3: Cross multiply
    187,089.29x = 280,505.89 × 67,143.58
  4. Step 4: Simplify right side
    187,089.29x = 18,834,170,248.51
  5. Step 5: Solve for x
    x = 18,834,170,248.51/187,089.29
  6. Step 6: Final answer
    x = 100,669.42

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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.