Home / 124,142.63-186,288.66-45,263.61

Finding the Fourth Proportional to 124,142.63, 186,288.66 and 45,263.61

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Solution

The fourth proportional to 124,142.63, 186,288.66 and 45,263.61 is: 67,922.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,142.63 : 186,288.66 = 45,263.61 : x
  2. Step 2: Convert to fraction form
    124,142.63/186,288.66 = 45,263.61/x
  3. Step 3: Cross multiply
    124,142.63x = 186,288.66 × 45,263.61
  4. Step 4: Simplify right side
    124,142.63x = 8,432,097,253.66
  5. Step 5: Solve for x
    x = 8,432,097,253.66/124,142.63
  6. Step 6: Final answer
    x = 67,922.66

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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.