Home / 105,616.59-145,756.73-60,309.12

Finding the Fourth Proportional to 105,616.59, 145,756.73 and 60,309.12

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Solution

The fourth proportional to 105,616.59, 145,756.73 and 60,309.12 is: 83,229.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,616.59 : 145,756.73 = 60,309.12 : x
  2. Step 2: Convert to fraction form
    105,616.59/145,756.73 = 60,309.12/x
  3. Step 3: Cross multiply
    105,616.59x = 145,756.73 × 60,309.12
  4. Step 4: Simplify right side
    105,616.59x = 8,790,460,516.19
  5. Step 5: Solve for x
    x = 8,790,460,516.19/105,616.59
  6. Step 6: Final answer
    x = 83,229.92

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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.