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Finding the Fourth Proportional to 140,580.37, 210,870.38 and 45,810.41

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Solution

The fourth proportional to 140,580.37, 210,870.38 and 45,810.41 is: 68,715.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,580.37 : 210,870.38 = 45,810.41 : x
  2. Step 2: Convert to fraction form
    140,580.37/210,870.38 = 45,810.41/x
  3. Step 3: Cross multiply
    140,580.37x = 210,870.38 × 45,810.41
  4. Step 4: Simplify right side
    140,580.37x = 9,660,057,510.30
  5. Step 5: Solve for x
    x = 9,660,057,510.30/140,580.37
  6. Step 6: Final answer
    x = 68,715.55

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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.