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Finding the Fourth Proportional to 101,217.76, 139,675.44 and 56,497.12

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Solution

The fourth proportional to 101,217.76, 139,675.44 and 56,497.12 is: 77,963.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,217.76 : 139,675.44 = 56,497.12 : x
  2. Step 2: Convert to fraction form
    101,217.76/139,675.44 = 56,497.12/x
  3. Step 3: Cross multiply
    101,217.76x = 139,675.44 × 56,497.12
  4. Step 4: Simplify right side
    101,217.76x = 7,891,260,094.73
  5. Step 5: Solve for x
    x = 7,891,260,094.73/101,217.76
  6. Step 6: Final answer
    x = 77,963.20

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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.