Home / 115,531.11-159,437.16-63,848.66

Finding the Fourth Proportional to 115,531.11, 159,437.16 and 63,848.66

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Solution

The fourth proportional to 115,531.11, 159,437.16 and 63,848.66 is: 88,113.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,531.11 : 159,437.16 = 63,848.66 : x
  2. Step 2: Convert to fraction form
    115,531.11/159,437.16 = 63,848.66/x
  3. Step 3: Cross multiply
    115,531.11x = 159,437.16 × 63,848.66
  4. Step 4: Simplify right side
    115,531.11x = 10,179,848,223.02
  5. Step 5: Solve for x
    x = 10,179,848,223.02/115,531.11
  6. Step 6: Final answer
    x = 88,113.48

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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.