Home / 124,378.32-186,595.20-45,490.80

Finding the Fourth Proportional to 124,378.32, 186,595.20 and 45,490.80

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Solution

The fourth proportional to 124,378.32, 186,595.20 and 45,490.80 is: 68,246.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,378.32 : 186,595.20 = 45,490.80 : x
  2. Step 2: Convert to fraction form
    124,378.32/186,595.20 = 45,490.80/x
  3. Step 3: Cross multiply
    124,378.32x = 186,595.20 × 45,490.80
  4. Step 4: Simplify right side
    124,378.32x = 8,488,364,924.16
  5. Step 5: Solve for x
    x = 8,488,364,924.16/124,378.32
  6. Step 6: Final answer
    x = 68,246.34

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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.