Home / 228,944.13-315,942.90-126,985.20

Finding the Fourth Proportional to 228,944.13, 315,942.90 and 126,985.20

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Solution

The fourth proportional to 228,944.13, 315,942.90 and 126,985.20 is: 175,239.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,944.13 : 315,942.90 = 126,985.20 : x
  2. Step 2: Convert to fraction form
    228,944.13/315,942.90 = 126,985.20/x
  3. Step 3: Cross multiply
    228,944.13x = 315,942.90 × 126,985.20
  4. Step 4: Simplify right side
    228,944.13x = 40,120,072,345.08
  5. Step 5: Solve for x
    x = 40,120,072,345.08/228,944.13
  6. Step 6: Final answer
    x = 175,239.58

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1.5x scale

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.