Home / 126,670.24-174,728.80-83,650.12

Finding the Fourth Proportional to 126,670.24, 174,728.80 and 83,650.12

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Solution

The fourth proportional to 126,670.24, 174,728.80 and 83,650.12 is: 115,386.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,670.24 : 174,728.80 = 83,650.12 : x
  2. Step 2: Convert to fraction form
    126,670.24/174,728.80 = 83,650.12/x
  3. Step 3: Cross multiply
    126,670.24x = 174,728.80 × 83,650.12
  4. Step 4: Simplify right side
    126,670.24x = 14,616,085,087.46
  5. Step 5: Solve for x
    x = 14,616,085,087.46/126,670.24
  6. Step 6: Final answer
    x = 115,386.89

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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.