Home / 106,827.32-147,440.20-64,385.90

Finding the Fourth Proportional to 106,827.32, 147,440.20 and 64,385.90

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Solution

The fourth proportional to 106,827.32, 147,440.20 and 64,385.90 is: 88,863.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,827.32 : 147,440.20 = 64,385.90 : x
  2. Step 2: Convert to fraction form
    106,827.32/147,440.20 = 64,385.90/x
  3. Step 3: Cross multiply
    106,827.32x = 147,440.20 × 64,385.90
  4. Step 4: Simplify right side
    106,827.32x = 9,493,069,973.18
  5. Step 5: Solve for x
    x = 9,493,069,973.18/106,827.32
  6. Step 6: Final answer
    x = 88,863.69

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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.