Home / 120,981.47-181,463.09-48,938.95

Finding the Fourth Proportional to 120,981.47, 181,463.09 and 48,938.95

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Solution

The fourth proportional to 120,981.47, 181,463.09 and 48,938.95 is: 73,404.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,981.47 : 181,463.09 = 48,938.95 : x
  2. Step 2: Convert to fraction form
    120,981.47/181,463.09 = 48,938.95/x
  3. Step 3: Cross multiply
    120,981.47x = 181,463.09 × 48,938.95
  4. Step 4: Simplify right side
    120,981.47x = 8,880,613,070.49
  5. Step 5: Solve for x
    x = 8,880,613,070.49/120,981.47
  6. Step 6: Final answer
    x = 73,404.74

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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.