Home / 126,741.36-174,946.80-73,047.78

Finding the Fourth Proportional to 126,741.36, 174,946.80 and 73,047.78

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Solution

The fourth proportional to 126,741.36, 174,946.80 and 73,047.78 is: 100,831.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,741.36 : 174,946.80 = 73,047.78 : x
  2. Step 2: Convert to fraction form
    126,741.36/174,946.80 = 73,047.78/x
  3. Step 3: Cross multiply
    126,741.36x = 174,946.80 × 73,047.78
  4. Step 4: Simplify right side
    126,741.36x = 12,779,475,358.10
  5. Step 5: Solve for x
    x = 12,779,475,358.10/126,741.36
  6. Step 6: Final answer
    x = 100,831.14

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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.