Home / 148,638.11-222,862.32-97,978.68

Finding the Fourth Proportional to 148,638.11, 222,862.32 and 97,978.68

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Solution

The fourth proportional to 148,638.11, 222,862.32 and 97,978.68 is: 146,905.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,638.11 : 222,862.32 = 97,978.68 : x
  2. Step 2: Convert to fraction form
    148,638.11/222,862.32 = 97,978.68/x
  3. Step 3: Cross multiply
    148,638.11x = 222,862.32 × 97,978.68
  4. Step 4: Simplify right side
    148,638.11x = 21,835,755,935.34
  5. Step 5: Solve for x
    x = 21,835,755,935.34/148,638.11
  6. Step 6: Final answer
    x = 146,905.51

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1.5x scale

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.