Home / 143,566.47-198,117.54-79,902.90

Finding the Fourth Proportional to 143,566.47, 198,117.54 and 79,902.90

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Solution

The fourth proportional to 143,566.47, 198,117.54 and 79,902.90 is: 110,263.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,566.47 : 198,117.54 = 79,902.90 : x
  2. Step 2: Convert to fraction form
    143,566.47/198,117.54 = 79,902.90/x
  3. Step 3: Cross multiply
    143,566.47x = 198,117.54 × 79,902.90
  4. Step 4: Simplify right side
    143,566.47x = 15,830,165,986.87
  5. Step 5: Solve for x
    x = 15,830,165,986.87/143,566.47
  6. Step 6: Final answer
    x = 110,263.67

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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.