Home / 142,459.54-213,610.39-58,278.79

Finding the Fourth Proportional to 142,459.54, 213,610.39 and 58,278.79

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Solution

The fourth proportional to 142,459.54, 213,610.39 and 58,278.79 is: 87,385.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,459.54 : 213,610.39 = 58,278.79 : x
  2. Step 2: Convert to fraction form
    142,459.54/213,610.39 = 58,278.79/x
  3. Step 3: Cross multiply
    142,459.54x = 213,610.39 × 58,278.79
  4. Step 4: Simplify right side
    142,459.54x = 12,448,955,060.63
  5. Step 5: Solve for x
    x = 12,448,955,060.63/142,459.54
  6. Step 6: Final answer
    x = 87,385.90

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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.