Home / 112,982.31-169,407.05-42,866.55

Finding the Fourth Proportional to 112,982.31, 169,407.05 and 42,866.55

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Solution

The fourth proportional to 112,982.31, 169,407.05 and 42,866.55 is: 64,274.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,982.31 : 169,407.05 = 42,866.55 : x
  2. Step 2: Convert to fraction form
    112,982.31/169,407.05 = 42,866.55/x
  3. Step 3: Cross multiply
    112,982.31x = 169,407.05 × 42,866.55
  4. Step 4: Simplify right side
    112,982.31x = 7,261,895,564.84
  5. Step 5: Solve for x
    x = 7,261,895,564.84/112,982.31
  6. Step 6: Final answer
    x = 64,274.62

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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.