Home / 115,530.60-159,424.62-67,128.24

Finding the Fourth Proportional to 115,530.60, 159,424.62 and 67,128.24

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Solution

The fourth proportional to 115,530.60, 159,424.62 and 67,128.24 is: 92,632.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,530.60 : 159,424.62 = 67,128.24 : x
  2. Step 2: Convert to fraction form
    115,530.60/159,424.62 = 67,128.24/x
  3. Step 3: Cross multiply
    115,530.60x = 159,424.62 × 67,128.24
  4. Step 4: Simplify right side
    115,530.60x = 10,701,894,153.27
  5. Step 5: Solve for x
    x = 10,701,894,153.27/115,530.60
  6. Step 6: Final answer
    x = 92,632.55

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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.