Home / 124,426.60-186,639.90-45,543.40

Finding the Fourth Proportional to 124,426.60, 186,639.90 and 45,543.40

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Solution

The fourth proportional to 124,426.60, 186,639.90 and 45,543.40 is: 68,315.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,426.60 : 186,639.90 = 45,543.40 : x
  2. Step 2: Convert to fraction form
    124,426.60/186,639.90 = 45,543.40/x
  3. Step 3: Cross multiply
    124,426.60x = 186,639.90 × 45,543.40
  4. Step 4: Simplify right side
    124,426.60x = 8,500,215,621.66
  5. Step 5: Solve for x
    x = 8,500,215,621.66/124,426.60
  6. Step 6: Final answer
    x = 68,315.10

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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.