Home / 131,417.37-181,298.75-80,432.37

Finding the Fourth Proportional to 131,417.37, 181,298.75 and 80,432.37

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Solution

The fourth proportional to 131,417.37, 181,298.75 and 80,432.37 is: 110,961.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,417.37 : 181,298.75 = 80,432.37 : x
  2. Step 2: Convert to fraction form
    131,417.37/181,298.75 = 80,432.37/x
  3. Step 3: Cross multiply
    131,417.37x = 181,298.75 × 80,432.37
  4. Step 4: Simplify right side
    131,417.37x = 14,582,287,738.38
  5. Step 5: Solve for x
    x = 14,582,287,738.38/131,417.37
  6. Step 6: Final answer
    x = 110,961.65

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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.