Home / 134,390.78-185,466.92-77,039.64

Finding the Fourth Proportional to 134,390.78, 185,466.92 and 77,039.64

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Solution

The fourth proportional to 134,390.78, 185,466.92 and 77,039.64 is: 106,319.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,390.78 : 185,466.92 = 77,039.64 : x
  2. Step 2: Convert to fraction form
    134,390.78/185,466.92 = 77,039.64/x
  3. Step 3: Cross multiply
    134,390.78x = 185,466.92 × 77,039.64
  4. Step 4: Simplify right side
    134,390.78x = 14,288,304,748.71
  5. Step 5: Solve for x
    x = 14,288,304,748.71/134,390.78
  6. Step 6: Final answer
    x = 106,319.08

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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.