Home / 142,856.40-214,284.60-119,701.20

Finding the Fourth Proportional to 142,856.40, 214,284.60 and 119,701.20

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Solution

The fourth proportional to 142,856.40, 214,284.60 and 119,701.20 is: 179,551.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,856.40 : 214,284.60 = 119,701.20 : x
  2. Step 2: Convert to fraction form
    142,856.40/214,284.60 = 119,701.20/x
  3. Step 3: Cross multiply
    142,856.40x = 214,284.60 × 119,701.20
  4. Step 4: Simplify right side
    142,856.40x = 25,650,123,761.52
  5. Step 5: Solve for x
    x = 25,650,123,761.52/142,856.40
  6. Step 6: Final answer
    x = 179,551.80

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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.