Home / 130,466.66-180,044.01-79,479.38

Finding the Fourth Proportional to 130,466.66, 180,044.01 and 79,479.38

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Solution

The fourth proportional to 130,466.66, 180,044.01 and 79,479.38 is: 109,681.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,466.66 : 180,044.01 = 79,479.38 : x
  2. Step 2: Convert to fraction form
    130,466.66/180,044.01 = 79,479.38/x
  3. Step 3: Cross multiply
    130,466.66x = 180,044.01 × 79,479.38
  4. Step 4: Simplify right side
    130,466.66x = 14,309,786,737.62
  5. Step 5: Solve for x
    x = 14,309,786,737.62/130,466.66
  6. Step 6: Final answer
    x = 109,681.56

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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.