Home / 113,378.20-170,132.10-43,307.80

Finding the Fourth Proportional to 113,378.20, 170,132.10 and 43,307.80

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Solution

The fourth proportional to 113,378.20, 170,132.10 and 43,307.80 is: 64,986.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,378.20 : 170,132.10 = 43,307.80 : x
  2. Step 2: Convert to fraction form
    113,378.20/170,132.10 = 43,307.80/x
  3. Step 3: Cross multiply
    113,378.20x = 170,132.10 × 43,307.80
  4. Step 4: Simplify right side
    113,378.20x = 7,368,046,960.38
  5. Step 5: Solve for x
    x = 7,368,046,960.38/113,378.20
  6. Step 6: Final answer
    x = 64,986.45

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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.