Home / 105,446.95-145,516.79-57,700.31

Finding the Fourth Proportional to 105,446.95, 145,516.79 and 57,700.31

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Solution

The fourth proportional to 105,446.95, 145,516.79 and 57,700.31 is: 79,626.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,446.95 : 145,516.79 = 57,700.31 : x
  2. Step 2: Convert to fraction form
    105,446.95/145,516.79 = 57,700.31/x
  3. Step 3: Cross multiply
    105,446.95x = 145,516.79 × 57,700.31
  4. Step 4: Simplify right side
    105,446.95x = 8,396,363,309.87
  5. Step 5: Solve for x
    x = 8,396,363,309.87/105,446.95
  6. Step 6: Final answer
    x = 79,626.42

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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.