Home / 99,154.42-136,770.78-58,839.64

Finding the Fourth Proportional to 99,154.42, 136,770.78 and 58,839.64

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Solution

The fourth proportional to 99,154.42, 136,770.78 and 58,839.64 is: 81,161.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,154.42 : 136,770.78 = 58,839.64 : x
  2. Step 2: Convert to fraction form
    99,154.42/136,770.78 = 58,839.64/x
  3. Step 3: Cross multiply
    99,154.42x = 136,770.78 × 58,839.64
  4. Step 4: Simplify right side
    99,154.42x = 8,047,543,457.72
  5. Step 5: Solve for x
    x = 8,047,543,457.72/99,154.42
  6. Step 6: Final answer
    x = 81,161.72

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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.