Home / 148,971.22-205,569.57-85,307.38

Finding the Fourth Proportional to 148,971.22, 205,569.57 and 85,307.38

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Solution

The fourth proportional to 148,971.22, 205,569.57 and 85,307.38 is: 117,718.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,971.22 : 205,569.57 = 85,307.38 : x
  2. Step 2: Convert to fraction form
    148,971.22/205,569.57 = 85,307.38/x
  3. Step 3: Cross multiply
    148,971.22x = 205,569.57 × 85,307.38
  4. Step 4: Simplify right side
    148,971.22x = 17,536,601,424.43
  5. Step 5: Solve for x
    x = 17,536,601,424.43/148,971.22
  6. Step 6: Final answer
    x = 117,718.05

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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.