Home / 92,674.19-139,011.28-80,157.02

Finding the Fourth Proportional to 92,674.19, 139,011.28 and 80,157.02

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Solution

The fourth proportional to 92,674.19, 139,011.28 and 80,157.02 is: 120,235.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,674.19 : 139,011.28 = 80,157.02 : x
  2. Step 2: Convert to fraction form
    92,674.19/139,011.28 = 80,157.02/x
  3. Step 3: Cross multiply
    92,674.19x = 139,011.28 × 80,157.02
  4. Step 4: Simplify right side
    92,674.19x = 11,142,729,055.74
  5. Step 5: Solve for x
    x = 11,142,729,055.74/92,674.19
  6. Step 6: Final answer
    x = 120,235.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.