Home / 124,178.15-186,245.15-53,140.74

Finding the Fourth Proportional to 124,178.15, 186,245.15 and 53,140.74

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Solution

The fourth proportional to 124,178.15, 186,245.15 and 53,140.74 is: 79,701.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,178.15 : 186,245.15 = 53,140.74 : x
  2. Step 2: Convert to fraction form
    124,178.15/186,245.15 = 53,140.74/x
  3. Step 3: Cross multiply
    124,178.15x = 186,245.15 × 53,140.74
  4. Step 4: Simplify right side
    124,178.15x = 9,897,204,826.71
  5. Step 5: Solve for x
    x = 9,897,204,826.71/124,178.15
  6. Step 6: Final answer
    x = 79,701.66

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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.