Home / 99,180.18-136,884.11-56,161.89

Finding the Fourth Proportional to 99,180.18, 136,884.11 and 56,161.89

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Solution

The fourth proportional to 99,180.18, 136,884.11 and 56,161.89 is: 77,512.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,180.18 : 136,884.11 = 56,161.89 : x
  2. Step 2: Convert to fraction form
    99,180.18/136,884.11 = 56,161.89/x
  3. Step 3: Cross multiply
    99,180.18x = 136,884.11 × 56,161.89
  4. Step 4: Simplify right side
    99,180.18x = 7,687,670,047.76
  5. Step 5: Solve for x
    x = 7,687,670,047.76/99,180.18
  6. Step 6: Final answer
    x = 77,512.16

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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.