Home / 99,651.07-137,523.93-57,212.34

Finding the Fourth Proportional to 99,651.07, 137,523.93 and 57,212.34

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Solution

The fourth proportional to 99,651.07, 137,523.93 and 57,212.34 is: 78,956.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,651.07 : 137,523.93 = 57,212.34 : x
  2. Step 2: Convert to fraction form
    99,651.07/137,523.93 = 57,212.34/x
  3. Step 3: Cross multiply
    99,651.07x = 137,523.93 × 57,212.34
  4. Step 4: Simplify right side
    99,651.07x = 7,868,065,841.30
  5. Step 5: Solve for x
    x = 7,868,065,841.30/99,651.07
  6. Step 6: Final answer
    x = 78,956.16

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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.