Home / 126,279.03-189,411.10-47,386.59

Finding the Fourth Proportional to 126,279.03, 189,411.10 and 47,386.59

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Solution

The fourth proportional to 126,279.03, 189,411.10 and 47,386.59 is: 71,077.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,279.03 : 189,411.10 = 47,386.59 : x
  2. Step 2: Convert to fraction form
    126,279.03/189,411.10 = 47,386.59/x
  3. Step 3: Cross multiply
    126,279.03x = 189,411.10 × 47,386.59
  4. Step 4: Simplify right side
    126,279.03x = 8,975,545,071.63
  5. Step 5: Solve for x
    x = 8,975,545,071.63/126,279.03
  6. Step 6: Final answer
    x = 71,077.09

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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.