Home / 131,445.99-181,382.49-80,473.10

Finding the Fourth Proportional to 131,445.99, 181,382.49 and 80,473.10

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Solution

The fourth proportional to 131,445.99, 181,382.49 and 80,473.10 is: 111,044.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,445.99 : 181,382.49 = 80,473.10 : x
  2. Step 2: Convert to fraction form
    131,445.99/181,382.49 = 80,473.10/x
  3. Step 3: Cross multiply
    131,445.99x = 181,382.49 × 80,473.10
  4. Step 4: Simplify right side
    131,445.99x = 14,596,410,349.11
  5. Step 5: Solve for x
    x = 14,596,410,349.11/131,445.99
  6. Step 6: Final answer
    x = 111,044.93

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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.