Home / 131,569.10-197,353.65-105,325.10

Finding the Fourth Proportional to 131,569.10, 197,353.65 and 105,325.10

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Solution

The fourth proportional to 131,569.10, 197,353.65 and 105,325.10 is: 157,987.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,569.10 : 197,353.65 = 105,325.10 : x
  2. Step 2: Convert to fraction form
    131,569.10/197,353.65 = 105,325.10/x
  3. Step 3: Cross multiply
    131,569.10x = 197,353.65 × 105,325.10
  4. Step 4: Simplify right side
    131,569.10x = 20,786,292,921.62
  5. Step 5: Solve for x
    x = 20,786,292,921.62/131,569.10
  6. Step 6: Final answer
    x = 157,987.65

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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.