Home / 209,785.31-314,540.07-101,686.05

Finding the Fourth Proportional to 209,785.31, 314,540.07 and 101,686.05

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Solution

The fourth proportional to 209,785.31, 314,540.07 and 101,686.05 is: 152,462.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,785.31 : 314,540.07 = 101,686.05 : x
  2. Step 2: Convert to fraction form
    209,785.31/314,540.07 = 101,686.05/x
  3. Step 3: Cross multiply
    209,785.31x = 314,540.07 × 101,686.05
  4. Step 4: Simplify right side
    209,785.31x = 31,984,337,285.02
  5. Step 5: Solve for x
    x = 31,984,337,285.02/209,785.31
  6. Step 6: Final answer
    x = 152,462.24

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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.