Home / 84,746.60-127,152.30-83,418.20

Finding the Fourth Proportional to 84,746.60, 127,152.30 and 83,418.20

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Solution

The fourth proportional to 84,746.60, 127,152.30 and 83,418.20 is: 125,159.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,746.60 : 127,152.30 = 83,418.20 : x
  2. Step 2: Convert to fraction form
    84,746.60/127,152.30 = 83,418.20/x
  3. Step 3: Cross multiply
    84,746.60x = 127,152.30 × 83,418.20
  4. Step 4: Simplify right side
    84,746.60x = 10,606,815,991.86
  5. Step 5: Solve for x
    x = 10,606,815,991.86/84,746.60
  6. Step 6: Final answer
    x = 125,159.19

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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.