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Finding the Fourth Proportional to 112,752.97, 155,560.46 and 64,320.10

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Solution

The fourth proportional to 112,752.97, 155,560.46 and 64,320.10 is: 88,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,752.97 : 155,560.46 = 64,320.10 : x
  2. Step 2: Convert to fraction form
    112,752.97/155,560.46 = 64,320.10/x
  3. Step 3: Cross multiply
    112,752.97x = 155,560.46 × 64,320.10
  4. Step 4: Simplify right side
    112,752.97x = 10,005,664,343.25
  5. Step 5: Solve for x
    x = 10,005,664,343.25/112,752.97
  6. Step 6: Final answer
    x = 88,739.70

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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.