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Finding the Fourth Proportional to 111,548, 153,937.32 and 61,248.08

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Solution

The fourth proportional to 111,548, 153,937.32 and 61,248.08 is: 84,522.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,548 : 153,937.32 = 61,248.08 : x
  2. Step 2: Convert to fraction form
    111,548/153,937.32 = 61,248.08/x
  3. Step 3: Cross multiply
    111,548x = 153,937.32 × 61,248.08
  4. Step 4: Simplify right side
    111,548x = 9,428,365,290.35
  5. Step 5: Solve for x
    x = 9,428,365,290.35/111,548
  6. Step 6: Final answer
    x = 84,522.94

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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.