Home / 131,570.32-181,566.64-71,140.56

Finding the Fourth Proportional to 131,570.32, 181,566.64 and 71,140.56

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Solution

The fourth proportional to 131,570.32, 181,566.64 and 71,140.56 is: 98,173.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,570.32 : 181,566.64 = 71,140.56 : x
  2. Step 2: Convert to fraction form
    131,570.32/181,566.64 = 71,140.56/x
  3. Step 3: Cross multiply
    131,570.32x = 181,566.64 × 71,140.56
  4. Step 4: Simplify right side
    131,570.32x = 12,916,752,446.92
  5. Step 5: Solve for x
    x = 12,916,752,446.92/131,570.32
  6. Step 6: Final answer
    x = 98,173.76

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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.