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Finding the Fourth Proportional to 144,013.95, 198,737.55 and 79,483.68

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Solution

The fourth proportional to 144,013.95, 198,737.55 and 79,483.68 is: 109,686.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,013.95 : 198,737.55 = 79,483.68 : x
  2. Step 2: Convert to fraction form
    144,013.95/198,737.55 = 79,483.68/x
  3. Step 3: Cross multiply
    144,013.95x = 198,737.55 × 79,483.68
  4. Step 4: Simplify right side
    144,013.95x = 15,796,391,828.18
  5. Step 5: Solve for x
    x = 15,796,391,828.18/144,013.95
  6. Step 6: Final answer
    x = 109,686.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.