Home / 151,826.40-209,660.40-101,671.20

Finding the Fourth Proportional to 151,826.40, 209,660.40 and 101,671.20

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Solution

The fourth proportional to 151,826.40, 209,660.40 and 101,671.20 is: 140,399.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,826.40 : 209,660.40 = 101,671.20 : x
  2. Step 2: Convert to fraction form
    151,826.40/209,660.40 = 101,671.20/x
  3. Step 3: Cross multiply
    151,826.40x = 209,660.40 × 101,671.20
  4. Step 4: Simplify right side
    151,826.40x = 21,316,424,460.48
  5. Step 5: Solve for x
    x = 21,316,424,460.48/151,826.40
  6. Step 6: Final answer
    x = 140,399.99

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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.