Home / 137,156.19-189,267.93-76,715.17

Finding the Fourth Proportional to 137,156.19, 189,267.93 and 76,715.17

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Solution

The fourth proportional to 137,156.19, 189,267.93 and 76,715.17 is: 105,862.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,156.19 : 189,267.93 = 76,715.17 : x
  2. Step 2: Convert to fraction form
    137,156.19/189,267.93 = 76,715.17/x
  3. Step 3: Cross multiply
    137,156.19x = 189,267.93 × 76,715.17
  4. Step 4: Simplify right side
    137,156.19x = 14,519,720,952.33
  5. Step 5: Solve for x
    x = 14,519,720,952.33/137,156.19
  6. Step 6: Final answer
    x = 105,862.68

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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.