Home / 131,775.30-181,751.64-85,845.06

Finding the Fourth Proportional to 131,775.30, 181,751.64 and 85,845.06

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Solution

The fourth proportional to 131,775.30, 181,751.64 and 85,845.06 is: 118,402.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,775.30 : 181,751.64 = 85,845.06 : x
  2. Step 2: Convert to fraction form
    131,775.30/181,751.64 = 85,845.06/x
  3. Step 3: Cross multiply
    131,775.30x = 181,751.64 × 85,845.06
  4. Step 4: Simplify right side
    131,775.30x = 15,602,480,440.90
  5. Step 5: Solve for x
    x = 15,602,480,440.90/131,775.30
  6. Step 6: Final answer
    x = 118,402.16

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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.