Home / 117,901.22-162,655.61-72,565.52

Finding the Fourth Proportional to 117,901.22, 162,655.61 and 72,565.52

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Solution

The fourth proportional to 117,901.22, 162,655.61 and 72,565.52 is: 100,110.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,901.22 : 162,655.61 = 72,565.52 : x
  2. Step 2: Convert to fraction form
    117,901.22/162,655.61 = 72,565.52/x
  3. Step 3: Cross multiply
    117,901.22x = 162,655.61 × 72,565.52
  4. Step 4: Simplify right side
    117,901.22x = 11,803,187,744.46
  5. Step 5: Solve for x
    x = 11,803,187,744.46/117,901.22
  6. Step 6: Final answer
    x = 100,110.82

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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.