Home / 137,331.54-189,522.92-76,901.65

Finding the Fourth Proportional to 137,331.54, 189,522.92 and 76,901.65

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Solution

The fourth proportional to 137,331.54, 189,522.92 and 76,901.65 is: 106,127.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,331.54 : 189,522.92 = 76,901.65 : x
  2. Step 2: Convert to fraction form
    137,331.54/189,522.92 = 76,901.65/x
  3. Step 3: Cross multiply
    137,331.54x = 189,522.92 × 76,901.65
  4. Step 4: Simplify right side
    137,331.54x = 14,574,624,979.26
  5. Step 5: Solve for x
    x = 14,574,624,979.26/137,331.54
  6. Step 6: Final answer
    x = 106,127.30

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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.