Home / 101,686.48-140,279.88-63,981.52

Finding the Fourth Proportional to 101,686.48, 140,279.88 and 63,981.52

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Solution

The fourth proportional to 101,686.48, 140,279.88 and 63,981.52 is: 88,264.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,686.48 : 140,279.88 = 63,981.52 : x
  2. Step 2: Convert to fraction form
    101,686.48/140,279.88 = 63,981.52/x
  3. Step 3: Cross multiply
    101,686.48x = 140,279.88 × 63,981.52
  4. Step 4: Simplify right side
    101,686.48x = 8,975,319,947.82
  5. Step 5: Solve for x
    x = 8,975,319,947.82/101,686.48
  6. Step 6: Final answer
    x = 88,264.63

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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.