Home / 109,421.76-151,038.96-68,060.96

Finding the Fourth Proportional to 109,421.76, 151,038.96 and 68,060.96

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Solution

The fourth proportional to 109,421.76, 151,038.96 and 68,060.96 is: 93,947.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,421.76 : 151,038.96 = 68,060.96 : x
  2. Step 2: Convert to fraction form
    109,421.76/151,038.96 = 68,060.96/x
  3. Step 3: Cross multiply
    109,421.76x = 151,038.96 × 68,060.96
  4. Step 4: Simplify right side
    109,421.76x = 10,279,856,615.00
  5. Step 5: Solve for x
    x = 10,279,856,615.00/109,421.76
  6. Step 6: Final answer
    x = 93,947.10

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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.