Home / 131,760.96-181,756.35-77,993.57

Finding the Fourth Proportional to 131,760.96, 181,756.35 and 77,993.57

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Solution

The fourth proportional to 131,760.96, 181,756.35 and 77,993.57 is: 107,587.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,760.96 : 181,756.35 = 77,993.57 : x
  2. Step 2: Convert to fraction form
    131,760.96/181,756.35 = 77,993.57/x
  3. Step 3: Cross multiply
    131,760.96x = 181,756.35 × 77,993.57
  4. Step 4: Simplify right side
    131,760.96x = 14,175,825,697.89
  5. Step 5: Solve for x
    x = 14,175,825,697.89/131,760.96
  6. Step 6: Final answer
    x = 107,587.45

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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.