Home / 111,832.65-154,315.02-75,612.89

Finding the Fourth Proportional to 111,832.65, 154,315.02 and 75,612.89

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Solution

The fourth proportional to 111,832.65, 154,315.02 and 75,612.89 is: 104,336.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,832.65 : 154,315.02 = 75,612.89 : x
  2. Step 2: Convert to fraction form
    111,832.65/154,315.02 = 75,612.89/x
  3. Step 3: Cross multiply
    111,832.65x = 154,315.02 × 75,612.89
  4. Step 4: Simplify right side
    111,832.65x = 11,668,205,301.94
  5. Step 5: Solve for x
    x = 11,668,205,301.94/111,832.65
  6. Step 6: Final answer
    x = 104,336.30

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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.