Home / 212,870.77-319,367.81-63,113.92

Finding the Fourth Proportional to 212,870.77, 319,367.81 and 63,113.92

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Solution

The fourth proportional to 212,870.77, 319,367.81 and 63,113.92 is: 94,689.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,870.77 : 319,367.81 = 63,113.92 : x
  2. Step 2: Convert to fraction form
    212,870.77/319,367.81 = 63,113.92/x
  3. Step 3: Cross multiply
    212,870.77x = 319,367.81 × 63,113.92
  4. Step 4: Simplify right side
    212,870.77x = 20,156,553,770.28
  5. Step 5: Solve for x
    x = 20,156,553,770.28/212,870.77
  6. Step 6: Final answer
    x = 94,689.16

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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.