Home / 105,218.73-145,204.92-57,472.83

Finding the Fourth Proportional to 105,218.73, 145,204.92 and 57,472.83

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Solution

The fourth proportional to 105,218.73, 145,204.92 and 57,472.83 is: 79,314.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,218.73 : 145,204.92 = 57,472.83 : x
  2. Step 2: Convert to fraction form
    105,218.73/145,204.92 = 57,472.83/x
  3. Step 3: Cross multiply
    105,218.73x = 145,204.92 × 57,472.83
  4. Step 4: Simplify right side
    105,218.73x = 8,345,337,682.32
  5. Step 5: Solve for x
    x = 8,345,337,682.32/105,218.73
  6. Step 6: Final answer
    x = 79,314.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.