Home / 145,743.31-218,615.01-112,511.89

Finding the Fourth Proportional to 145,743.31, 218,615.01 and 112,511.89

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Solution

The fourth proportional to 145,743.31, 218,615.01 and 112,511.89 is: 168,767.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,743.31 : 218,615.01 = 112,511.89 : x
  2. Step 2: Convert to fraction form
    145,743.31/218,615.01 = 112,511.89/x
  3. Step 3: Cross multiply
    145,743.31x = 218,615.01 × 112,511.89
  4. Step 4: Simplify right side
    145,743.31x = 24,596,787,957.47
  5. Step 5: Solve for x
    x = 24,596,787,957.47/145,743.31
  6. Step 6: Final answer
    x = 168,767.87

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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.