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Finding the Fourth Proportional to 112,902.16, 155,812 and 62,601.16

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Solution

The fourth proportional to 112,902.16, 155,812 and 62,601.16 is: 86,393.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,902.16 : 155,812 = 62,601.16 : x
  2. Step 2: Convert to fraction form
    112,902.16/155,812 = 62,601.16/x
  3. Step 3: Cross multiply
    112,902.16x = 155,812 × 62,601.16
  4. Step 4: Simplify right side
    112,902.16x = 9,754,011,941.92
  5. Step 5: Solve for x
    x = 9,754,011,941.92/112,902.16
  6. Step 6: Final answer
    x = 86,393.49

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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.