Home / 126,508.40-189,616.52-47,572.28

Finding the Fourth Proportional to 126,508.40, 189,616.52 and 47,572.28

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Solution

The fourth proportional to 126,508.40, 189,616.52 and 47,572.28 is: 71,303.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,508.40 : 189,616.52 = 47,572.28 : x
  2. Step 2: Convert to fraction form
    126,508.40/189,616.52 = 47,572.28/x
  3. Step 3: Cross multiply
    126,508.40x = 189,616.52 × 47,572.28
  4. Step 4: Simplify right side
    126,508.40x = 9,020,490,182.07
  5. Step 5: Solve for x
    x = 9,020,490,182.07/126,508.40
  6. Step 6: Final answer
    x = 71,303.49

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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.