Home / 140,412.96-210,639.33-45,612.81

Finding the Fourth Proportional to 140,412.96, 210,639.33 and 45,612.81

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Solution

The fourth proportional to 140,412.96, 210,639.33 and 45,612.81 is: 68,425.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,412.96 : 210,639.33 = 45,612.81 : x
  2. Step 2: Convert to fraction form
    140,412.96/210,639.33 = 45,612.81/x
  3. Step 3: Cross multiply
    140,412.96x = 210,639.33 × 45,612.81
  4. Step 4: Simplify right side
    140,412.96x = 9,607,851,737.82
  5. Step 5: Solve for x
    x = 9,607,851,737.82/140,412.96
  6. Step 6: Final answer
    x = 68,425.68

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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.