Home / 131,298.32-181,190.76-71,682.32

Finding the Fourth Proportional to 131,298.32, 181,190.76 and 71,682.32

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Solution

The fourth proportional to 131,298.32, 181,190.76 and 71,682.32 is: 98,921.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,298.32 : 181,190.76 = 71,682.32 : x
  2. Step 2: Convert to fraction form
    131,298.32/181,190.76 = 71,682.32/x
  3. Step 3: Cross multiply
    131,298.32x = 181,190.76 × 71,682.32
  4. Step 4: Simplify right side
    131,298.32x = 12,988,174,039.36
  5. Step 5: Solve for x
    x = 12,988,174,039.36/131,298.32
  6. Step 6: Final answer
    x = 98,921.10

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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.