Home / 112,869.60-169,304.40-42,751.20

Finding the Fourth Proportional to 112,869.60, 169,304.40 and 42,751.20

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Solution

The fourth proportional to 112,869.60, 169,304.40 and 42,751.20 is: 64,126.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,869.60 : 169,304.40 = 42,751.20 : x
  2. Step 2: Convert to fraction form
    112,869.60/169,304.40 = 42,751.20/x
  3. Step 3: Cross multiply
    112,869.60x = 169,304.40 × 42,751.20
  4. Step 4: Simplify right side
    112,869.60x = 7,237,966,265.28
  5. Step 5: Solve for x
    x = 7,237,966,265.28/112,869.60
  6. Step 6: Final answer
    x = 64,126.80

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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.