Home / 124,621.20-186,931.80-112,155.30

Finding the Fourth Proportional to 124,621.20, 186,931.80 and 112,155.30

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Solution

The fourth proportional to 124,621.20, 186,931.80 and 112,155.30 is: 168,232.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,621.20 : 186,931.80 = 112,155.30 : x
  2. Step 2: Convert to fraction form
    124,621.20/186,931.80 = 112,155.30/x
  3. Step 3: Cross multiply
    124,621.20x = 186,931.80 × 112,155.30
  4. Step 4: Simplify right side
    124,621.20x = 20,965,392,108.54
  5. Step 5: Solve for x
    x = 20,965,392,108.54/124,621.20
  6. Step 6: Final answer
    x = 168,232.95

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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.