Home / 124,272.80-186,242.88-45,312.56

Finding the Fourth Proportional to 124,272.80, 186,242.88 and 45,312.56

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Solution

The fourth proportional to 124,272.80, 186,242.88 and 45,312.56 is: 67,908.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,272.80 : 186,242.88 = 45,312.56 : x
  2. Step 2: Convert to fraction form
    124,272.80/186,242.88 = 45,312.56/x
  3. Step 3: Cross multiply
    124,272.80x = 186,242.88 × 45,312.56
  4. Step 4: Simplify right side
    124,272.80x = 8,439,141,674.57
  5. Step 5: Solve for x
    x = 8,439,141,674.57/124,272.80
  6. Step 6: Final answer
    x = 67,908.20

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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.