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Finding the Fourth Proportional to 163,125.76, 225,111.84 and 99,459.52

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Solution

The fourth proportional to 163,125.76, 225,111.84 and 99,459.52 is: 137,253.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,125.76 : 225,111.84 = 99,459.52 : x
  2. Step 2: Convert to fraction form
    163,125.76/225,111.84 = 99,459.52/x
  3. Step 3: Cross multiply
    163,125.76x = 225,111.84 × 99,459.52
  4. Step 4: Simplify right side
    163,125.76x = 22,389,515,552.72
  5. Step 5: Solve for x
    x = 22,389,515,552.72/163,125.76
  6. Step 6: Final answer
    x = 137,253.10

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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.