Home / 117,146.52-161,663.28-63,432.66

Finding the Fourth Proportional to 117,146.52, 161,663.28 and 63,432.66

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Solution

The fourth proportional to 117,146.52, 161,663.28 and 63,432.66 is: 87,537.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,146.52 : 161,663.28 = 63,432.66 : x
  2. Step 2: Convert to fraction form
    117,146.52/161,663.28 = 63,432.66/x
  3. Step 3: Cross multiply
    117,146.52x = 161,663.28 × 63,432.66
  4. Step 4: Simplify right side
    117,146.52x = 10,254,731,874.72
  5. Step 5: Solve for x
    x = 10,254,731,874.72/117,146.52
  6. Step 6: Final answer
    x = 87,537.66

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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.