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Finding the Fourth Proportional to 144,006.80, 216,010.20 and 130,228.70

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Solution

The fourth proportional to 144,006.80, 216,010.20 and 130,228.70 is: 195,343.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,006.80 : 216,010.20 = 130,228.70 : x
  2. Step 2: Convert to fraction form
    144,006.80/216,010.20 = 130,228.70/x
  3. Step 3: Cross multiply
    144,006.80x = 216,010.20 × 130,228.70
  4. Step 4: Simplify right side
    144,006.80x = 28,130,727,532.74
  5. Step 5: Solve for x
    x = 28,130,727,532.74/144,006.80
  6. Step 6: Final answer
    x = 195,343.05

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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.