Home / 144,872.40-216,790.20-132,430.80

Finding the Fourth Proportional to 144,872.40, 216,790.20 and 132,430.80

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Solution

The fourth proportional to 144,872.40, 216,790.20 and 132,430.80 is: 198,172.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,872.40 : 216,790.20 = 132,430.80 : x
  2. Step 2: Convert to fraction form
    144,872.40/216,790.20 = 132,430.80/x
  3. Step 3: Cross multiply
    144,872.40x = 216,790.20 × 132,430.80
  4. Step 4: Simplify right side
    144,872.40x = 28,709,699,618.16
  5. Step 5: Solve for x
    x = 28,709,699,618.16/144,872.40
  6. Step 6: Final answer
    x = 198,172.32

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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.