Home / 115,278.34-159,083.80-64,291.14

Finding the Fourth Proportional to 115,278.34, 159,083.80 and 64,291.14

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Solution

The fourth proportional to 115,278.34, 159,083.80 and 64,291.14 is: 88,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,278.34 : 159,083.80 = 64,291.14 : x
  2. Step 2: Convert to fraction form
    115,278.34/159,083.80 = 64,291.14/x
  3. Step 3: Cross multiply
    115,278.34x = 159,083.80 × 64,291.14
  4. Step 4: Simplify right side
    115,278.34x = 10,227,678,857.53
  5. Step 5: Solve for x
    x = 10,227,678,857.53/115,278.34
  6. Step 6: Final answer
    x = 88,721.60

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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.