Home / 121,433.70-182,150.55-77,256.30

Finding the Fourth Proportional to 121,433.70, 182,150.55 and 77,256.30

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Solution

The fourth proportional to 121,433.70, 182,150.55 and 77,256.30 is: 115,884.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,433.70 : 182,150.55 = 77,256.30 : x
  2. Step 2: Convert to fraction form
    121,433.70/182,150.55 = 77,256.30/x
  3. Step 3: Cross multiply
    121,433.70x = 182,150.55 × 77,256.30
  4. Step 4: Simplify right side
    121,433.70x = 14,072,277,535.97
  5. Step 5: Solve for x
    x = 14,072,277,535.97/121,433.70
  6. Step 6: Final answer
    x = 115,884.45

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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.