Home / 115,278.04-159,083.39-64,290.84

Finding the Fourth Proportional to 115,278.04, 159,083.39 and 64,290.84

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Solution

The fourth proportional to 115,278.04, 159,083.39 and 64,290.84 is: 88,721.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,278.04 : 159,083.39 = 64,290.84 : x
  2. Step 2: Convert to fraction form
    115,278.04/159,083.39 = 64,290.84/x
  3. Step 3: Cross multiply
    115,278.04x = 159,083.39 × 64,290.84
  4. Step 4: Simplify right side
    115,278.04x = 10,227,604,773.15
  5. Step 5: Solve for x
    x = 10,227,604,773.15/115,278.04
  6. Step 6: Final answer
    x = 88,721.19

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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.