Home / 115,217.60-158,994.76-64,235.92

Finding the Fourth Proportional to 115,217.60, 158,994.76 and 64,235.92

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Solution

The fourth proportional to 115,217.60, 158,994.76 and 64,235.92 is: 88,642.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,217.60 : 158,994.76 = 64,235.92 : x
  2. Step 2: Convert to fraction form
    115,217.60/158,994.76 = 64,235.92/x
  3. Step 3: Cross multiply
    115,217.60x = 158,994.76 × 64,235.92
  4. Step 4: Simplify right side
    115,217.60x = 10,213,174,683.78
  5. Step 5: Solve for x
    x = 10,213,174,683.78/115,217.60
  6. Step 6: Final answer
    x = 88,642.49

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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.