Home / 145,865.96-218,800.68-40,678.52

Finding the Fourth Proportional to 145,865.96, 218,800.68 and 40,678.52

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Solution

The fourth proportional to 145,865.96, 218,800.68 and 40,678.52 is: 61,018.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,865.96 : 218,800.68 = 40,678.52 : x
  2. Step 2: Convert to fraction form
    145,865.96/218,800.68 = 40,678.52/x
  3. Step 3: Cross multiply
    145,865.96x = 218,800.68 × 40,678.52
  4. Step 4: Simplify right side
    145,865.96x = 8,900,487,837.39
  5. Step 5: Solve for x
    x = 8,900,487,837.39/145,865.96
  6. Step 6: Final answer
    x = 61,018.27

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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.