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Finding the Fourth Proportional to 144,521.39, 216,815.03 and 77,960.04

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Solution

The fourth proportional to 144,521.39, 216,815.03 and 77,960.04 is: 116,957.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,521.39 : 216,815.03 = 77,960.04 : x
  2. Step 2: Convert to fraction form
    144,521.39/216,815.03 = 77,960.04/x
  3. Step 3: Cross multiply
    144,521.39x = 216,815.03 × 77,960.04
  4. Step 4: Simplify right side
    144,521.39x = 16,902,908,021.60
  5. Step 5: Solve for x
    x = 16,902,908,021.60/144,521.39
  6. Step 6: Final answer
    x = 116,957.83

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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.