Home / 104,421.40-156,680.70-54,557.80

Finding the Fourth Proportional to 104,421.40, 156,680.70 and 54,557.80

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Solution

The fourth proportional to 104,421.40, 156,680.70 and 54,557.80 is: 81,862.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,421.40 : 156,680.70 = 54,557.80 : x
  2. Step 2: Convert to fraction form
    104,421.40/156,680.70 = 54,557.80/x
  3. Step 3: Cross multiply
    104,421.40x = 156,680.70 × 54,557.80
  4. Step 4: Simplify right side
    104,421.40x = 8,548,154,294.46
  5. Step 5: Solve for x
    x = 8,548,154,294.46/104,421.40
  6. Step 6: Final answer
    x = 81,862.09

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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.