Home / 109,286.04-163,831.80-42,711.03

Finding the Fourth Proportional to 109,286.04, 163,831.80 and 42,711.03

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Solution

The fourth proportional to 109,286.04, 163,831.80 and 42,711.03 is: 64,028.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,286.04 : 163,831.80 = 42,711.03 : x
  2. Step 2: Convert to fraction form
    109,286.04/163,831.80 = 42,711.03/x
  3. Step 3: Cross multiply
    109,286.04x = 163,831.80 × 42,711.03
  4. Step 4: Simplify right side
    109,286.04x = 6,997,424,924.75
  5. Step 5: Solve for x
    x = 6,997,424,924.75/109,286.04
  6. Step 6: Final answer
    x = 64,028.53

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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.