Home / 216,837.30-325,312.65-83,721.90

Finding the Fourth Proportional to 216,837.30, 325,312.65 and 83,721.90

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Solution

The fourth proportional to 216,837.30, 325,312.65 and 83,721.90 is: 125,604.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,837.30 : 325,312.65 = 83,721.90 : x
  2. Step 2: Convert to fraction form
    216,837.30/325,312.65 = 83,721.90/x
  3. Step 3: Cross multiply
    216,837.30x = 325,312.65 × 83,721.90
  4. Step 4: Simplify right side
    216,837.30x = 27,235,793,152.04
  5. Step 5: Solve for x
    x = 27,235,793,152.04/216,837.30
  6. Step 6: Final answer
    x = 125,604.74

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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.