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Finding the Fourth Proportional to 152,708, 210,760.08 and 93,126.56

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Solution

The fourth proportional to 152,708, 210,760.08 and 93,126.56 is: 128,528.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,708 : 210,760.08 = 93,126.56 : x
  2. Step 2: Convert to fraction form
    152,708/210,760.08 = 93,126.56/x
  3. Step 3: Cross multiply
    152,708x = 210,760.08 × 93,126.56
  4. Step 4: Simplify right side
    152,708x = 19,627,361,235.72
  5. Step 5: Solve for x
    x = 19,627,361,235.72/152,708
  6. Step 6: Final answer
    x = 128,528.70

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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.