Home / 145,564.31-218,346.57-40,383.38

Finding the Fourth Proportional to 145,564.31, 218,346.57 and 40,383.38

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Solution

The fourth proportional to 145,564.31, 218,346.57 and 40,383.38 is: 60,575.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,564.31 : 218,346.57 = 40,383.38 : x
  2. Step 2: Convert to fraction form
    145,564.31/218,346.57 = 40,383.38/x
  3. Step 3: Cross multiply
    145,564.31x = 218,346.57 × 40,383.38
  4. Step 4: Simplify right side
    145,564.31x = 8,817,573,053.87
  5. Step 5: Solve for x
    x = 8,817,573,053.87/145,564.31
  6. Step 6: Final answer
    x = 60,575.10

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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.