Home / 126,130.74-189,246.52-51,256.74

Finding the Fourth Proportional to 126,130.74, 189,246.52 and 51,256.74

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Solution

The fourth proportional to 126,130.74, 189,246.52 and 51,256.74 is: 76,905.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,130.74 : 189,246.52 = 51,256.74 : x
  2. Step 2: Convert to fraction form
    126,130.74/189,246.52 = 51,256.74/x
  3. Step 3: Cross multiply
    126,130.74x = 189,246.52 × 51,256.74
  4. Step 4: Simplify right side
    126,130.74x = 9,700,159,671.54
  5. Step 5: Solve for x
    x = 9,700,159,671.54/126,130.74
  6. Step 6: Final answer
    x = 76,905.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.