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Finding the Fourth Proportional to 153,702.08, 212,076.78 and 93,304.52

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Solution

The fourth proportional to 153,702.08, 212,076.78 and 93,304.52 is: 128,740.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,702.08 : 212,076.78 = 93,304.52 : x
  2. Step 2: Convert to fraction form
    153,702.08/212,076.78 = 93,304.52/x
  3. Step 3: Cross multiply
    153,702.08x = 212,076.78 × 93,304.52
  4. Step 4: Simplify right side
    153,702.08x = 19,787,721,100.66
  5. Step 5: Solve for x
    x = 19,787,721,100.66/153,702.08
  6. Step 6: Final answer
    x = 128,740.75

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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.