Home / 212,860.31-319,315.17-70,718.27

Finding the Fourth Proportional to 212,860.31, 319,315.17 and 70,718.27

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Solution

The fourth proportional to 212,860.31, 319,315.17 and 70,718.27 is: 106,085.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,860.31 : 319,315.17 = 70,718.27 : x
  2. Step 2: Convert to fraction form
    212,860.31/319,315.17 = 70,718.27/x
  3. Step 3: Cross multiply
    212,860.31x = 319,315.17 × 70,718.27
  4. Step 4: Simplify right side
    212,860.31x = 22,581,416,407.16
  5. Step 5: Solve for x
    x = 22,581,416,407.16/212,860.31
  6. Step 6: Final answer
    x = 106,085.61

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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.