Home / 99,812.41-137,741.18-57,370.84

Finding the Fourth Proportional to 99,812.41, 137,741.18 and 57,370.84

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Solution

The fourth proportional to 99,812.41, 137,741.18 and 57,370.84 is: 79,171.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,812.41 : 137,741.18 = 57,370.84 : x
  2. Step 2: Convert to fraction form
    99,812.41/137,741.18 = 57,370.84/x
  3. Step 3: Cross multiply
    99,812.41x = 137,741.18 × 57,370.84
  4. Step 4: Simplify right side
    99,812.41x = 7,902,327,199.19
  5. Step 5: Solve for x
    x = 7,902,327,199.19/99,812.41
  6. Step 6: Final answer
    x = 79,171.79

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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.