Home / 126,211.74-174,172.80-69,623.12

Finding the Fourth Proportional to 126,211.74, 174,172.80 and 69,623.12

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Solution

The fourth proportional to 126,211.74, 174,172.80 and 69,623.12 is: 96,080.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,211.74 : 174,172.80 = 69,623.12 : x
  2. Step 2: Convert to fraction form
    126,211.74/174,172.80 = 69,623.12/x
  3. Step 3: Cross multiply
    126,211.74x = 174,172.80 × 69,623.12
  4. Step 4: Simplify right side
    126,211.74x = 12,126,453,755.14
  5. Step 5: Solve for x
    x = 12,126,453,755.14/126,211.74
  6. Step 6: Final answer
    x = 96,080.24

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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.