Home / 115,195.42-158,971.28-64,206.74

Finding the Fourth Proportional to 115,195.42, 158,971.28 and 64,206.74

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Solution

The fourth proportional to 115,195.42, 158,971.28 and 64,206.74 is: 88,606.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,195.42 : 158,971.28 = 64,206.74 : x
  2. Step 2: Convert to fraction form
    115,195.42/158,971.28 = 64,206.74/x
  3. Step 3: Cross multiply
    115,195.42x = 158,971.28 × 64,206.74
  4. Step 4: Simplify right side
    115,195.42x = 10,207,027,642.43
  5. Step 5: Solve for x
    x = 10,207,027,642.43/115,195.42
  6. Step 6: Final answer
    x = 88,606.19

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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.