Home / 104,530.60-156,731.10-60,135.40

Finding the Fourth Proportional to 104,530.60, 156,731.10 and 60,135.40

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Solution

The fourth proportional to 104,530.60, 156,731.10 and 60,135.40 is: 90,165.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,530.60 : 156,731.10 = 60,135.40 : x
  2. Step 2: Convert to fraction form
    104,530.60/156,731.10 = 60,135.40/x
  3. Step 3: Cross multiply
    104,530.60x = 156,731.10 × 60,135.40
  4. Step 4: Simplify right side
    104,530.60x = 9,425,087,390.94
  5. Step 5: Solve for x
    x = 9,425,087,390.94/104,530.60
  6. Step 6: Final answer
    x = 90,165.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.