Home / 140,419.31-210,565.04-40,555.76

Finding the Fourth Proportional to 140,419.31, 210,565.04 and 40,555.76

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Solution

The fourth proportional to 140,419.31, 210,565.04 and 40,555.76 is: 60,815.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,419.31 : 210,565.04 = 40,555.76 : x
  2. Step 2: Convert to fraction form
    140,419.31/210,565.04 = 40,555.76/x
  3. Step 3: Cross multiply
    140,419.31x = 210,565.04 × 40,555.76
  4. Step 4: Simplify right side
    140,419.31x = 8,539,623,971.03
  5. Step 5: Solve for x
    x = 8,539,623,971.03/140,419.31
  6. Step 6: Final answer
    x = 60,815.17

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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.