Home / 140,345.14-210,531.88-45,571.36

Finding the Fourth Proportional to 140,345.14, 210,531.88 and 45,571.36

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Solution

The fourth proportional to 140,345.14, 210,531.88 and 45,571.36 is: 68,361.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,345.14 : 210,531.88 = 45,571.36 : x
  2. Step 2: Convert to fraction form
    140,345.14/210,531.88 = 45,571.36/x
  3. Step 3: Cross multiply
    140,345.14x = 210,531.88 × 45,571.36
  4. Step 4: Simplify right side
    140,345.14x = 9,594,224,094.96
  5. Step 5: Solve for x
    x = 9,594,224,094.96/140,345.14
  6. Step 6: Final answer
    x = 68,361.64

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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.