Home / 79,900.04-119,242.40-71,042.96

Finding the Fourth Proportional to 79,900.04, 119,242.40 and 71,042.96

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Solution

The fourth proportional to 79,900.04, 119,242.40 and 71,042.96 is: 106,024.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,900.04 : 119,242.40 = 71,042.96 : x
  2. Step 2: Convert to fraction form
    79,900.04/119,242.40 = 71,042.96/x
  3. Step 3: Cross multiply
    79,900.04x = 119,242.40 × 71,042.96
  4. Step 4: Simplify right side
    79,900.04x = 8,471,333,053.50
  5. Step 5: Solve for x
    x = 8,471,333,053.50/79,900.04
  6. Step 6: Final answer
    x = 106,024.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.