Home / 144,101.60-216,280.40-84,863.20

Finding the Fourth Proportional to 144,101.60, 216,280.40 and 84,863.20

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Solution

The fourth proportional to 144,101.60, 216,280.40 and 84,863.20 is: 127,370.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,101.60 : 216,280.40 = 84,863.20 : x
  2. Step 2: Convert to fraction form
    144,101.60/216,280.40 = 84,863.20/x
  3. Step 3: Cross multiply
    144,101.60x = 216,280.40 × 84,863.20
  4. Step 4: Simplify right side
    144,101.60x = 18,354,246,841.28
  5. Step 5: Solve for x
    x = 18,354,246,841.28/144,101.60
  6. Step 6: Final answer
    x = 127,370.18

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1.5x scale

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.