Home / 136,758.85-188,501.33-91,420.29

Finding the Fourth Proportional to 136,758.85, 188,501.33 and 91,420.29

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Solution

The fourth proportional to 136,758.85, 188,501.33 and 91,420.29 is: 126,009.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,758.85 : 188,501.33 = 91,420.29 : x
  2. Step 2: Convert to fraction form
    136,758.85/188,501.33 = 91,420.29/x
  3. Step 3: Cross multiply
    136,758.85x = 188,501.33 × 91,420.29
  4. Step 4: Simplify right side
    136,758.85x = 17,232,844,854.38
  5. Step 5: Solve for x
    x = 17,232,844,854.38/136,758.85
  6. Step 6: Final answer
    x = 126,009.00

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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.