Home / 130,381.41-179,920.12-80,070.69

Finding the Fourth Proportional to 130,381.41, 179,920.12 and 80,070.69

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Solution

The fourth proportional to 130,381.41, 179,920.12 and 80,070.69 is: 110,493.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,381.41 : 179,920.12 = 80,070.69 : x
  2. Step 2: Convert to fraction form
    130,381.41/179,920.12 = 80,070.69/x
  3. Step 3: Cross multiply
    130,381.41x = 179,920.12 × 80,070.69
  4. Step 4: Simplify right side
    130,381.41x = 14,406,328,153.28
  5. Step 5: Solve for x
    x = 14,406,328,153.28/130,381.41
  6. Step 6: Final answer
    x = 110,493.73

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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.