Home / 131,718.90-181,760.58-77,994.30

Finding the Fourth Proportional to 131,718.90, 181,760.58 and 77,994.30

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Solution

The fourth proportional to 131,718.90, 181,760.58 and 77,994.30 is: 107,625.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,718.90 : 181,760.58 = 77,994.30 : x
  2. Step 2: Convert to fraction form
    131,718.90/181,760.58 = 77,994.30/x
  3. Step 3: Cross multiply
    131,718.90x = 181,760.58 × 77,994.30
  4. Step 4: Simplify right side
    131,718.90x = 14,176,289,204.69
  5. Step 5: Solve for x
    x = 14,176,289,204.69/131,718.90
  6. Step 6: Final answer
    x = 107,625.32

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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.