Home / 131,353.53-181,234.51-80,347.63

Finding the Fourth Proportional to 131,353.53, 181,234.51 and 80,347.63

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Solution

The fourth proportional to 131,353.53, 181,234.51 and 80,347.63 is: 110,859.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,353.53 : 181,234.51 = 80,347.63 : x
  2. Step 2: Convert to fraction form
    131,353.53/181,234.51 = 80,347.63/x
  3. Step 3: Cross multiply
    131,353.53x = 181,234.51 × 80,347.63
  4. Step 4: Simplify right side
    131,353.53x = 14,561,762,698.76
  5. Step 5: Solve for x
    x = 14,561,762,698.76/131,353.53
  6. Step 6: Final answer
    x = 110,859.32

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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.