Home / 124,278.36-171,516.06-76,559.64

Finding the Fourth Proportional to 124,278.36, 171,516.06 and 76,559.64

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Solution

The fourth proportional to 124,278.36, 171,516.06 and 76,559.64 is: 105,659.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,278.36 : 171,516.06 = 76,559.64 : x
  2. Step 2: Convert to fraction form
    124,278.36/171,516.06 = 76,559.64/x
  3. Step 3: Cross multiply
    124,278.36x = 171,516.06 × 76,559.64
  4. Step 4: Simplify right side
    124,278.36x = 13,131,207,807.82
  5. Step 5: Solve for x
    x = 13,131,207,807.82/124,278.36
  6. Step 6: Final answer
    x = 105,659.65

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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.