Home / 145,766.25-218,296.72-70,700.51

Finding the Fourth Proportional to 145,766.25, 218,296.72 and 70,700.51

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Solution

The fourth proportional to 145,766.25, 218,296.72 and 70,700.51 is: 105,879.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,766.25 : 218,296.72 = 70,700.51 : x
  2. Step 2: Convert to fraction form
    145,766.25/218,296.72 = 70,700.51/x
  3. Step 3: Cross multiply
    145,766.25x = 218,296.72 × 70,700.51
  4. Step 4: Simplify right side
    145,766.25x = 15,433,690,069.44
  5. Step 5: Solve for x
    x = 15,433,690,069.44/145,766.25
  6. Step 6: Final answer
    x = 105,879.72

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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.