Home / 136,854.40-204,911.04-71,052.16

Finding the Fourth Proportional to 136,854.40, 204,911.04 and 71,052.16

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Solution

The fourth proportional to 136,854.40, 204,911.04 and 71,052.16 is: 106,385.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,854.40 : 204,911.04 = 71,052.16 : x
  2. Step 2: Convert to fraction form
    136,854.40/204,911.04 = 71,052.16/x
  3. Step 3: Cross multiply
    136,854.40x = 204,911.04 × 71,052.16
  4. Step 4: Simplify right side
    136,854.40x = 14,559,371,999.85
  5. Step 5: Solve for x
    x = 14,559,371,999.85/136,854.40
  6. Step 6: Final answer
    x = 106,385.85

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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.