Home / 107,269.40-148,186.19-85,731.57

Finding the Fourth Proportional to 107,269.40, 148,186.19 and 85,731.57

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Solution

The fourth proportional to 107,269.40, 148,186.19 and 85,731.57 is: 118,432.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,269.40 : 148,186.19 = 85,731.57 : x
  2. Step 2: Convert to fraction form
    107,269.40/148,186.19 = 85,731.57/x
  3. Step 3: Cross multiply
    107,269.40x = 148,186.19 × 85,731.57
  4. Step 4: Simplify right side
    107,269.40x = 12,704,234,935.35
  5. Step 5: Solve for x
    x = 12,704,234,935.35/107,269.40
  6. Step 6: Final answer
    x = 118,432.98

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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.