Home / 148,857.86-205,411.93-85,181.06

Finding the Fourth Proportional to 148,857.86, 205,411.93 and 85,181.06

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Solution

The fourth proportional to 148,857.86, 205,411.93 and 85,181.06 is: 117,543.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,857.86 : 205,411.93 = 85,181.06 : x
  2. Step 2: Convert to fraction form
    148,857.86/205,411.93 = 85,181.06/x
  3. Step 3: Cross multiply
    148,857.86x = 205,411.93 × 85,181.06
  4. Step 4: Simplify right side
    148,857.86x = 17,497,205,934.05
  5. Step 5: Solve for x
    x = 17,497,205,934.05/148,857.86
  6. Step 6: Final answer
    x = 117,543.04

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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.