Home / 115,819.95-159,818.04-64,835.49

Finding the Fourth Proportional to 115,819.95, 159,818.04 and 64,835.49

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Solution

The fourth proportional to 115,819.95, 159,818.04 and 64,835.49 is: 89,465.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,819.95 : 159,818.04 = 64,835.49 : x
  2. Step 2: Convert to fraction form
    115,819.95/159,818.04 = 64,835.49/x
  3. Step 3: Cross multiply
    115,819.95x = 159,818.04 × 64,835.49
  4. Step 4: Simplify right side
    115,819.95x = 10,361,880,934.24
  5. Step 5: Solve for x
    x = 10,361,880,934.24/115,819.95
  6. Step 6: Final answer
    x = 89,465.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.