Home / 148,663.15-205,141.21-84,138.29

Finding the Fourth Proportional to 148,663.15, 205,141.21 and 84,138.29

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Solution

The fourth proportional to 148,663.15, 205,141.21 and 84,138.29 is: 116,102.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,663.15 : 205,141.21 = 84,138.29 : x
  2. Step 2: Convert to fraction form
    148,663.15/205,141.21 = 84,138.29/x
  3. Step 3: Cross multiply
    148,663.15x = 205,141.21 × 84,138.29
  4. Step 4: Simplify right side
    148,663.15x = 17,260,231,305.08
  5. Step 5: Solve for x
    x = 17,260,231,305.08/148,663.15
  6. Step 6: Final answer
    x = 116,102.96

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1.5x scale

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.