Home / 145,727.25-218,599.65-45,890.70

Finding the Fourth Proportional to 145,727.25, 218,599.65 and 45,890.70

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Solution

The fourth proportional to 145,727.25, 218,599.65 and 45,890.70 is: 68,838.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,727.25 : 218,599.65 = 45,890.70 : x
  2. Step 2: Convert to fraction form
    145,727.25/218,599.65 = 45,890.70/x
  3. Step 3: Cross multiply
    145,727.25x = 218,599.65 × 45,890.70
  4. Step 4: Simplify right side
    145,727.25x = 10,031,690,958.26
  5. Step 5: Solve for x
    x = 10,031,690,958.26/145,727.25
  6. Step 6: Final answer
    x = 68,838.81

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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.