Home / 131,856.24-197,784.34-87,569.48

Finding the Fourth Proportional to 131,856.24, 197,784.34 and 87,569.48

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Solution

The fourth proportional to 131,856.24, 197,784.34 and 87,569.48 is: 131,354.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,856.24 : 197,784.34 = 87,569.48 : x
  2. Step 2: Convert to fraction form
    131,856.24/197,784.34 = 87,569.48/x
  3. Step 3: Cross multiply
    131,856.24x = 197,784.34 × 87,569.48
  4. Step 4: Simplify right side
    131,856.24x = 17,319,871,805.94
  5. Step 5: Solve for x
    x = 17,319,871,805.94/131,856.24
  6. Step 6: Final answer
    x = 131,354.21

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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.