Home / 121,182.16-181,688.92-53,677.55

Finding the Fourth Proportional to 121,182.16, 181,688.92 and 53,677.55

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Solution

The fourth proportional to 121,182.16, 181,688.92 and 53,677.55 is: 80,478.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,182.16 : 181,688.92 = 53,677.55 : x
  2. Step 2: Convert to fraction form
    121,182.16/181,688.92 = 53,677.55/x
  3. Step 3: Cross multiply
    121,182.16x = 181,688.92 × 53,677.55
  4. Step 4: Simplify right side
    121,182.16x = 9,752,616,087.75
  5. Step 5: Solve for x
    x = 9,752,616,087.75/121,182.16
  6. Step 6: Final answer
    x = 80,478.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.