Home / 99,070.60-136,717.40-56,630.04

Finding the Fourth Proportional to 99,070.60, 136,717.40 and 56,630.04

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Solution

The fourth proportional to 99,070.60, 136,717.40 and 56,630.04 is: 78,149.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,070.60 : 136,717.40 = 56,630.04 : x
  2. Step 2: Convert to fraction form
    99,070.60/136,717.40 = 56,630.04/x
  3. Step 3: Cross multiply
    99,070.60x = 136,717.40 × 56,630.04
  4. Step 4: Simplify right side
    99,070.60x = 7,742,311,830.70
  5. Step 5: Solve for x
    x = 7,742,311,830.70/99,070.60
  6. Step 6: Final answer
    x = 78,149.44

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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.