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Finding the Fourth Proportional to 112,841.64, 155,717.64 and 65,093.76

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Solution

The fourth proportional to 112,841.64, 155,717.64 and 65,093.76 is: 89,827.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,841.64 : 155,717.64 = 65,093.76 : x
  2. Step 2: Convert to fraction form
    112,841.64/155,717.64 = 65,093.76/x
  3. Step 3: Cross multiply
    112,841.64x = 155,717.64 × 65,093.76
  4. Step 4: Simplify right side
    112,841.64x = 10,136,246,685.93
  5. Step 5: Solve for x
    x = 10,136,246,685.93/112,841.64
  6. Step 6: Final answer
    x = 89,827.18

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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.