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Finding the Fourth Proportional to 101,281.65, 139,740.24 and 58,258.89

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Solution

The fourth proportional to 101,281.65, 139,740.24 and 58,258.89 is: 80,380.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,281.65 : 139,740.24 = 58,258.89 : x
  2. Step 2: Convert to fraction form
    101,281.65/139,740.24 = 58,258.89/x
  3. Step 3: Cross multiply
    101,281.65x = 139,740.24 × 58,258.89
  4. Step 4: Simplify right side
    101,281.65x = 8,141,111,270.73
  5. Step 5: Solve for x
    x = 8,141,111,270.73/101,281.65
  6. Step 6: Final answer
    x = 80,380.91

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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.