Home / 126,172.80-174,123.60-69,587.76

Finding the Fourth Proportional to 126,172.80, 174,123.60 and 69,587.76

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Solution

The fourth proportional to 126,172.80, 174,123.60 and 69,587.76 is: 96,033.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,172.80 : 174,123.60 = 69,587.76 : x
  2. Step 2: Convert to fraction form
    126,172.80/174,123.60 = 69,587.76/x
  3. Step 3: Cross multiply
    126,172.80x = 174,123.60 × 69,587.76
  4. Step 4: Simplify right side
    126,172.80x = 12,116,871,287.14
  5. Step 5: Solve for x
    x = 12,116,871,287.14/126,172.80
  6. Step 6: Final answer
    x = 96,033.94

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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.