Home / 115,245.49-159,030.65-64,256.04

Finding the Fourth Proportional to 115,245.49, 159,030.65 and 64,256.04

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Solution

The fourth proportional to 115,245.49, 159,030.65 and 64,256.04 is: 88,668.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,245.49 : 159,030.65 = 64,256.04 : x
  2. Step 2: Convert to fraction form
    115,245.49/159,030.65 = 64,256.04/x
  3. Step 3: Cross multiply
    115,245.49x = 159,030.65 × 64,256.04
  4. Step 4: Simplify right side
    115,245.49x = 10,218,679,486.35
  5. Step 5: Solve for x
    x = 10,218,679,486.35/115,245.49
  6. Step 6: Final answer
    x = 88,668.81

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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.