Home / 112,373.28-155,072.16-62,071.20

Finding the Fourth Proportional to 112,373.28, 155,072.16 and 62,071.20

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Solution

The fourth proportional to 112,373.28, 155,072.16 and 62,071.20 is: 85,656.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,373.28 : 155,072.16 = 62,071.20 : x
  2. Step 2: Convert to fraction form
    112,373.28/155,072.16 = 62,071.20/x
  3. Step 3: Cross multiply
    112,373.28x = 155,072.16 × 62,071.20
  4. Step 4: Simplify right side
    112,373.28x = 9,625,515,057.79
  5. Step 5: Solve for x
    x = 9,625,515,057.79/112,373.28
  6. Step 6: Final answer
    x = 85,656.62

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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.