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Finding the Fourth Proportional to 101,927.92, 140,655.72 and 56,608.80

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Solution

The fourth proportional to 101,927.92, 140,655.72 and 56,608.80 is: 78,117.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,927.92 : 140,655.72 = 56,608.80 : x
  2. Step 2: Convert to fraction form
    101,927.92/140,655.72 = 56,608.80/x
  3. Step 3: Cross multiply
    101,927.92x = 140,655.72 × 56,608.80
  4. Step 4: Simplify right side
    101,927.92x = 7,962,351,522.34
  5. Step 5: Solve for x
    x = 7,962,351,522.34/101,927.92
  6. Step 6: Final answer
    x = 78,117.47

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1.5x scale

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.