Home / 213,064.04-319,718.17-86,680.96

Finding the Fourth Proportional to 213,064.04, 319,718.17 and 86,680.96

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Solution

The fourth proportional to 213,064.04, 319,718.17 and 86,680.96 is: 130,071.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,064.04 : 319,718.17 = 86,680.96 : x
  2. Step 2: Convert to fraction form
    213,064.04/319,718.17 = 86,680.96/x
  3. Step 3: Cross multiply
    213,064.04x = 319,718.17 × 86,680.96
  4. Step 4: Simplify right side
    213,064.04x = 27,713,477,905.04
  5. Step 5: Solve for x
    x = 27,713,477,905.04/213,064.04
  6. Step 6: Final answer
    x = 130,071.12

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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.