Home / 115,161.76-158,920.63-64,174.24

Finding the Fourth Proportional to 115,161.76, 158,920.63 and 64,174.24

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Solution

The fourth proportional to 115,161.76, 158,920.63 and 64,174.24 is: 88,559.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,161.76 : 158,920.63 = 64,174.24 : x
  2. Step 2: Convert to fraction form
    115,161.76/158,920.63 = 64,174.24/x
  3. Step 3: Cross multiply
    115,161.76x = 158,920.63 × 64,174.24
  4. Step 4: Simplify right side
    115,161.76x = 10,198,610,650.57
  5. Step 5: Solve for x
    x = 10,198,610,650.57/115,161.76
  6. Step 6: Final answer
    x = 88,559.00

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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.