Home / 228,143.65-342,101.26-70,351.60

Finding the Fourth Proportional to 228,143.65, 342,101.26 and 70,351.60

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Solution

The fourth proportional to 228,143.65, 342,101.26 and 70,351.60 is: 105,492.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,143.65 : 342,101.26 = 70,351.60 : x
  2. Step 2: Convert to fraction form
    228,143.65/342,101.26 = 70,351.60/x
  3. Step 3: Cross multiply
    228,143.65x = 342,101.26 × 70,351.60
  4. Step 4: Simplify right side
    228,143.65x = 24,067,371,003.02
  5. Step 5: Solve for x
    x = 24,067,371,003.02/228,143.65
  6. Step 6: Final answer
    x = 105,492.18

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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.