Home / 210,009.10-315,013.65-131,277.10

Finding the Fourth Proportional to 210,009.10, 315,013.65 and 131,277.10

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Solution

The fourth proportional to 210,009.10, 315,013.65 and 131,277.10 is: 196,915.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,009.10 : 315,013.65 = 131,277.10 : x
  2. Step 2: Convert to fraction form
    210,009.10/315,013.65 = 131,277.10/x
  3. Step 3: Cross multiply
    210,009.10x = 315,013.65 × 131,277.10
  4. Step 4: Simplify right side
    210,009.10x = 41,354,078,432.42
  5. Step 5: Solve for x
    x = 41,354,078,432.42/210,009.10
  6. Step 6: Final answer
    x = 196,915.65

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1.5x scale

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.