Home / 131,801.16-181,929.96-80,118.08

Finding the Fourth Proportional to 131,801.16, 181,929.96 and 80,118.08

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Solution

The fourth proportional to 131,801.16, 181,929.96 and 80,118.08 is: 110,589.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,801.16 : 181,929.96 = 80,118.08 : x
  2. Step 2: Convert to fraction form
    131,801.16/181,929.96 = 80,118.08/x
  3. Step 3: Cross multiply
    131,801.16x = 181,929.96 × 80,118.08
  4. Step 4: Simplify right side
    131,801.16x = 14,575,879,089.68
  5. Step 5: Solve for x
    x = 14,575,879,089.68/131,801.16
  6. Step 6: Final answer
    x = 110,589.92

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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.