Home / 137,154.92-189,280.93-76,726.58

Finding the Fourth Proportional to 137,154.92, 189,280.93 and 76,726.58

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Solution

The fourth proportional to 137,154.92, 189,280.93 and 76,726.58 is: 105,886.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,154.92 : 189,280.93 = 76,726.58 : x
  2. Step 2: Convert to fraction form
    137,154.92/189,280.93 = 76,726.58/x
  3. Step 3: Cross multiply
    137,154.92x = 189,280.93 × 76,726.58
  4. Step 4: Simplify right side
    137,154.92x = 14,522,877,279.90
  5. Step 5: Solve for x
    x = 14,522,877,279.90/137,154.92
  6. Step 6: Final answer
    x = 105,886.66

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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.