Home / 137,624.62-189,924.19-77,208.70

Finding the Fourth Proportional to 137,624.62, 189,924.19 and 77,208.70

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Solution

The fourth proportional to 137,624.62, 189,924.19 and 77,208.70 is: 106,549.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,624.62 : 189,924.19 = 77,208.70 : x
  2. Step 2: Convert to fraction form
    137,624.62/189,924.19 = 77,208.70/x
  3. Step 3: Cross multiply
    137,624.62x = 189,924.19 × 77,208.70
  4. Step 4: Simplify right side
    137,624.62x = 14,663,799,808.45
  5. Step 5: Solve for x
    x = 14,663,799,808.45/137,624.62
  6. Step 6: Final answer
    x = 106,549.25

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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.