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Finding the Fourth Proportional to 134,484.54, 185,526.28 and 86,753.28

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Solution

The fourth proportional to 134,484.54, 185,526.28 and 86,753.28 is: 119,679.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,484.54 : 185,526.28 = 86,753.28 : x
  2. Step 2: Convert to fraction form
    134,484.54/185,526.28 = 86,753.28/x
  3. Step 3: Cross multiply
    134,484.54x = 185,526.28 × 86,753.28
  4. Step 4: Simplify right side
    134,484.54x = 16,095,013,316.20
  5. Step 5: Solve for x
    x = 16,095,013,316.20/134,484.54
  6. Step 6: Final answer
    x = 119,679.28

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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.