Home / 137,316.25-189,499.94-76,899.66

Finding the Fourth Proportional to 137,316.25, 189,499.94 and 76,899.66

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Solution

The fourth proportional to 137,316.25, 189,499.94 and 76,899.66 is: 106,123.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,316.25 : 189,499.94 = 76,899.66 : x
  2. Step 2: Convert to fraction form
    137,316.25/189,499.94 = 76,899.66/x
  3. Step 3: Cross multiply
    137,316.25x = 189,499.94 × 76,899.66
  4. Step 4: Simplify right side
    137,316.25x = 14,572,480,956.02
  5. Step 5: Solve for x
    x = 14,572,480,956.02/137,316.25
  6. Step 6: Final answer
    x = 106,123.50

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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.