Home / 109,114.56-163,443.40-87,934.68

Finding the Fourth Proportional to 109,114.56, 163,443.40 and 87,934.68

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Solution

The fourth proportional to 109,114.56, 163,443.40 and 87,934.68 is: 131,717.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,114.56 : 163,443.40 = 87,934.68 : x
  2. Step 2: Convert to fraction form
    109,114.56/163,443.40 = 87,934.68/x
  3. Step 3: Cross multiply
    109,114.56x = 163,443.40 × 87,934.68
  4. Step 4: Simplify right side
    109,114.56x = 14,372,343,077.11
  5. Step 5: Solve for x
    x = 14,372,343,077.11/109,114.56
  6. Step 6: Final answer
    x = 131,717.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.