Home / 131,856.08-181,962.26-71,426.72

Finding the Fourth Proportional to 131,856.08, 181,962.26 and 71,426.72

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Solution

The fourth proportional to 131,856.08, 181,962.26 and 71,426.72 is: 98,569.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,856.08 : 181,962.26 = 71,426.72 : x
  2. Step 2: Convert to fraction form
    131,856.08/181,962.26 = 71,426.72/x
  3. Step 3: Cross multiply
    131,856.08x = 181,962.26 × 71,426.72
  4. Step 4: Simplify right side
    131,856.08x = 12,996,967,395.59
  5. Step 5: Solve for x
    x = 12,996,967,395.59/131,856.08
  6. Step 6: Final answer
    x = 98,569.34

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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.