Home / 112,603.20-155,377.12-64,211.36

Finding the Fourth Proportional to 112,603.20, 155,377.12 and 64,211.36

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Solution

The fourth proportional to 112,603.20, 155,377.12 and 64,211.36 is: 88,602.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,603.20 : 155,377.12 = 64,211.36 : x
  2. Step 2: Convert to fraction form
    112,603.20/155,377.12 = 64,211.36/x
  3. Step 3: Cross multiply
    112,603.20x = 155,377.12 × 64,211.36
  4. Step 4: Simplify right side
    112,603.20x = 9,976,976,188.08
  5. Step 5: Solve for x
    x = 9,976,976,188.08/112,603.20
  6. Step 6: Final answer
    x = 88,602.95

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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.