Home / 126,315.09-174,313.76-69,725.25

Finding the Fourth Proportional to 126,315.09, 174,313.76 and 69,725.25

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Solution

The fourth proportional to 126,315.09, 174,313.76 and 69,725.25 is: 96,220.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,315.09 : 174,313.76 = 69,725.25 : x
  2. Step 2: Convert to fraction form
    126,315.09/174,313.76 = 69,725.25/x
  3. Step 3: Cross multiply
    126,315.09x = 174,313.76 × 69,725.25
  4. Step 4: Simplify right side
    126,315.09x = 12,154,070,145.81
  5. Step 5: Solve for x
    x = 12,154,070,145.81/126,315.09
  6. Step 6: Final answer
    x = 96,220.25

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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.