Home / 115,434.16-159,301.64-63,751.11

Finding the Fourth Proportional to 115,434.16, 159,301.64 and 63,751.11

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Solution

The fourth proportional to 115,434.16, 159,301.64 and 63,751.11 is: 87,977.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,434.16 : 159,301.64 = 63,751.11 : x
  2. Step 2: Convert to fraction form
    115,434.16/159,301.64 = 63,751.11/x
  3. Step 3: Cross multiply
    115,434.16x = 159,301.64 × 63,751.11
  4. Step 4: Simplify right side
    115,434.16x = 10,155,656,374.82
  5. Step 5: Solve for x
    x = 10,155,656,374.82/115,434.16
  6. Step 6: Final answer
    x = 87,977.91

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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.