Home / 139,975.15-193,350.08-103,750.03

Finding the Fourth Proportional to 139,975.15, 193,350.08 and 103,750.03

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Solution

The fourth proportional to 139,975.15, 193,350.08 and 103,750.03 is: 143,311.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,975.15 : 193,350.08 = 103,750.03 : x
  2. Step 2: Convert to fraction form
    139,975.15/193,350.08 = 103,750.03/x
  3. Step 3: Cross multiply
    139,975.15x = 193,350.08 × 103,750.03
  4. Step 4: Simplify right side
    139,975.15x = 20,060,076,600.50
  5. Step 5: Solve for x
    x = 20,060,076,600.50/139,975.15
  6. Step 6: Final answer
    x = 143,311.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.