Home / 115,924.02-159,981.10-64,933.70

Finding the Fourth Proportional to 115,924.02, 159,981.10 and 64,933.70

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Solution

The fourth proportional to 115,924.02, 159,981.10 and 64,933.70 is: 89,611.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,924.02 : 159,981.10 = 64,933.70 : x
  2. Step 2: Convert to fraction form
    115,924.02/159,981.10 = 64,933.70/x
  3. Step 3: Cross multiply
    115,924.02x = 159,981.10 × 64,933.70
  4. Step 4: Simplify right side
    115,924.02x = 10,388,164,753.07
  5. Step 5: Solve for x
    x = 10,388,164,753.07/115,924.02
  6. Step 6: Final answer
    x = 89,611.84

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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.