Home / 137,177.92-189,312.90-76,744.96

Finding the Fourth Proportional to 137,177.92, 189,312.90 and 76,744.96

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Solution

The fourth proportional to 137,177.92, 189,312.90 and 76,744.96 is: 105,912.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,177.92 : 189,312.90 = 76,744.96 : x
  2. Step 2: Convert to fraction form
    137,177.92/189,312.90 = 76,744.96/x
  3. Step 3: Cross multiply
    137,177.92x = 189,312.90 × 76,744.96
  4. Step 4: Simplify right side
    137,177.92x = 14,528,810,937.98
  5. Step 5: Solve for x
    x = 14,528,810,937.98/137,177.92
  6. Step 6: Final answer
    x = 105,912.17

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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.