Home / 115,440.40-159,306.20-64,453.91

Finding the Fourth Proportional to 115,440.40, 159,306.20 and 64,453.91

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Solution

The fourth proportional to 115,440.40, 159,306.20 and 64,453.91 is: 88,945.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,440.40 : 159,306.20 = 64,453.91 : x
  2. Step 2: Convert to fraction form
    115,440.40/159,306.20 = 64,453.91/x
  3. Step 3: Cross multiply
    115,440.40x = 159,306.20 × 64,453.91
  4. Step 4: Simplify right side
    115,440.40x = 10,267,906,756.71
  5. Step 5: Solve for x
    x = 10,267,906,756.71/115,440.40
  6. Step 6: Final answer
    x = 88,945.53

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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.