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Finding the Fourth Proportional to 113,393.26, 156,501.88 and 65,675.62

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Solution

The fourth proportional to 113,393.26, 156,501.88 and 65,675.62 is: 90,643.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,393.26 : 156,501.88 = 65,675.62 : x
  2. Step 2: Convert to fraction form
    113,393.26/156,501.88 = 65,675.62/x
  3. Step 3: Cross multiply
    113,393.26x = 156,501.88 × 65,675.62
  4. Step 4: Simplify right side
    113,393.26x = 10,278,358,000.17
  5. Step 5: Solve for x
    x = 10,278,358,000.17/113,393.26
  6. Step 6: Final answer
    x = 90,643.47

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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.