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Finding the Fourth Proportional to 126,307.80, 174,306.21 and 69,719.22

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Solution

The fourth proportional to 126,307.80, 174,306.21 and 69,719.22 is: 96,213.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,307.80 : 174,306.21 = 69,719.22 : x
  2. Step 2: Convert to fraction form
    126,307.80/174,306.21 = 69,719.22/x
  3. Step 3: Cross multiply
    126,307.80x = 174,306.21 × 69,719.22
  4. Step 4: Simplify right side
    126,307.80x = 12,152,493,002.36
  5. Step 5: Solve for x
    x = 12,152,493,002.36/126,307.80
  6. Step 6: Final answer
    x = 96,213.32

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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.