Home / 126,309.78-174,307.04-69,720.75

Finding the Fourth Proportional to 126,309.78, 174,307.04 and 69,720.75

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Solution

The fourth proportional to 126,309.78, 174,307.04 and 69,720.75 is: 96,214.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,309.78 : 174,307.04 = 69,720.75 : x
  2. Step 2: Convert to fraction form
    126,309.78/174,307.04 = 69,720.75/x
  3. Step 3: Cross multiply
    126,309.78x = 174,307.04 × 69,720.75
  4. Step 4: Simplify right side
    126,309.78x = 12,152,817,471.93
  5. Step 5: Solve for x
    x = 12,152,817,471.93/126,309.78
  6. Step 6: Final answer
    x = 96,214.38

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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.