Home / 142,439.54-213,580.46-58,258.80

Finding the Fourth Proportional to 142,439.54, 213,580.46 and 58,258.80

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Solution

The fourth proportional to 142,439.54, 213,580.46 and 58,258.80 is: 87,355.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,439.54 : 213,580.46 = 58,258.80 : x
  2. Step 2: Convert to fraction form
    142,439.54/213,580.46 = 58,258.80/x
  3. Step 3: Cross multiply
    142,439.54x = 213,580.46 × 58,258.80
  4. Step 4: Simplify right side
    142,439.54x = 12,442,941,011.75
  5. Step 5: Solve for x
    x = 12,442,941,011.75/142,439.54
  6. Step 6: Final answer
    x = 87,355.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.