Home / 115,377.80-159,214.72-64,386.53

Finding the Fourth Proportional to 115,377.80, 159,214.72 and 64,386.53

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Solution

The fourth proportional to 115,377.80, 159,214.72 and 64,386.53 is: 88,849.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,377.80 : 159,214.72 = 64,386.53 : x
  2. Step 2: Convert to fraction form
    115,377.80/159,214.72 = 64,386.53/x
  3. Step 3: Cross multiply
    115,377.80x = 159,214.72 × 64,386.53
  4. Step 4: Simplify right side
    115,377.80x = 10,251,283,106.46
  5. Step 5: Solve for x
    x = 10,251,283,106.46/115,377.80
  6. Step 6: Final answer
    x = 88,849.70

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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.