Home / 99,346.07-137,101.18-56,912.80

Finding the Fourth Proportional to 99,346.07, 137,101.18 and 56,912.80

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Solution

The fourth proportional to 99,346.07, 137,101.18 and 56,912.80 is: 78,541.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,346.07 : 137,101.18 = 56,912.80 : x
  2. Step 2: Convert to fraction form
    99,346.07/137,101.18 = 56,912.80/x
  3. Step 3: Cross multiply
    99,346.07x = 137,101.18 × 56,912.80
  4. Step 4: Simplify right side
    99,346.07x = 7,802,811,552.07
  5. Step 5: Solve for x
    x = 7,802,811,552.07/99,346.07
  6. Step 6: Final answer
    x = 78,541.73

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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.