Home / 102,318.46-141,199.08-56,996.98

Finding the Fourth Proportional to 102,318.46, 141,199.08 and 56,996.98

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Solution

The fourth proportional to 102,318.46, 141,199.08 and 56,996.98 is: 78,655.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,318.46 : 141,199.08 = 56,996.98 : x
  2. Step 2: Convert to fraction form
    102,318.46/141,199.08 = 56,996.98/x
  3. Step 3: Cross multiply
    102,318.46x = 141,199.08 × 56,996.98
  4. Step 4: Simplify right side
    102,318.46x = 8,047,921,138.78
  5. Step 5: Solve for x
    x = 8,047,921,138.78/102,318.46
  6. Step 6: Final answer
    x = 78,655.61

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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.