Home / 113,947.52-157,205.76-71,490.56

Finding the Fourth Proportional to 113,947.52, 157,205.76 and 71,490.56

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Solution

The fourth proportional to 113,947.52, 157,205.76 and 71,490.56 is: 98,630.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,947.52 : 157,205.76 = 71,490.56 : x
  2. Step 2: Convert to fraction form
    113,947.52/157,205.76 = 71,490.56/x
  3. Step 3: Cross multiply
    113,947.52x = 157,205.76 × 71,490.56
  4. Step 4: Simplify right side
    113,947.52x = 11,238,727,817.63
  5. Step 5: Solve for x
    x = 11,238,727,817.63/113,947.52
  6. Step 6: Final answer
    x = 98,630.74

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1.5x scale

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.