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Finding the Fourth Proportional to 130,380.96, 179,925.84 and 70,764.96

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Solution

The fourth proportional to 130,380.96, 179,925.84 and 70,764.96 is: 97,655.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,380.96 : 179,925.84 = 70,764.96 : x
  2. Step 2: Convert to fraction form
    130,380.96/179,925.84 = 70,764.96/x
  3. Step 3: Cross multiply
    130,380.96x = 179,925.84 × 70,764.96
  4. Step 4: Simplify right side
    130,380.96x = 12,732,444,870.57
  5. Step 5: Solve for x
    x = 12,732,444,870.57/130,380.96
  6. Step 6: Final answer
    x = 97,655.71

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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.