Home / 134,397.30-185,433.93-77,775.06

Finding the Fourth Proportional to 134,397.30, 185,433.93 and 77,775.06

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Solution

The fourth proportional to 134,397.30, 185,433.93 and 77,775.06 is: 107,309.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,397.30 : 185,433.93 = 77,775.06 : x
  2. Step 2: Convert to fraction form
    134,397.30/185,433.93 = 77,775.06/x
  3. Step 3: Cross multiply
    134,397.30x = 185,433.93 × 77,775.06
  4. Step 4: Simplify right side
    134,397.30x = 14,422,135,031.79
  5. Step 5: Solve for x
    x = 14,422,135,031.79/134,397.30
  6. Step 6: Final answer
    x = 107,309.71

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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.