Home / 129,313.80-193,970.93-40,574.12

Finding the Fourth Proportional to 129,313.80, 193,970.93 and 40,574.12

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Solution

The fourth proportional to 129,313.80, 193,970.93 and 40,574.12 is: 60,861.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,313.80 : 193,970.93 = 40,574.12 : x
  2. Step 2: Convert to fraction form
    129,313.80/193,970.93 = 40,574.12/x
  3. Step 3: Cross multiply
    129,313.80x = 193,970.93 × 40,574.12
  4. Step 4: Simplify right side
    129,313.80x = 7,870,198,617.61
  5. Step 5: Solve for x
    x = 7,870,198,617.61/129,313.80
  6. Step 6: Final answer
    x = 60,861.24

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1.5x scale

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.