Home / 137,756.88-190,104.24-77,327.55

Finding the Fourth Proportional to 137,756.88, 190,104.24 and 77,327.55

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Solution

The fourth proportional to 137,756.88, 190,104.24 and 77,327.55 is: 106,711.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,756.88 : 190,104.24 = 77,327.55 : x
  2. Step 2: Convert to fraction form
    137,756.88/190,104.24 = 77,327.55/x
  3. Step 3: Cross multiply
    137,756.88x = 190,104.24 × 77,327.55
  4. Step 4: Simplify right side
    137,756.88x = 14,700,295,123.81
  5. Step 5: Solve for x
    x = 14,700,295,123.81/137,756.88
  6. Step 6: Final answer
    x = 106,711.88

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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.