Home / 144,539.80-216,680.10-128,793.40

Finding the Fourth Proportional to 144,539.80, 216,680.10 and 128,793.40

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Solution

The fourth proportional to 144,539.80, 216,680.10 and 128,793.40 is: 193,074.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,539.80 : 216,680.10 = 128,793.40 : x
  2. Step 2: Convert to fraction form
    144,539.80/216,680.10 = 128,793.40/x
  3. Step 3: Cross multiply
    144,539.80x = 216,680.10 × 128,793.40
  4. Step 4: Simplify right side
    144,539.80x = 27,906,966,791.34
  5. Step 5: Solve for x
    x = 27,906,966,791.34/144,539.80
  6. Step 6: Final answer
    x = 193,074.62

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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.