Home / 148,910.40-205,476.48-84,378.24

Finding the Fourth Proportional to 148,910.40, 205,476.48 and 84,378.24

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Solution

The fourth proportional to 148,910.40, 205,476.48 and 84,378.24 is: 116,430.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,910.40 : 205,476.48 = 84,378.24 : x
  2. Step 2: Convert to fraction form
    148,910.40/205,476.48 = 84,378.24/x
  3. Step 3: Cross multiply
    148,910.40x = 205,476.48 × 84,378.24
  4. Step 4: Simplify right side
    148,910.40x = 17,337,743,743.80
  5. Step 5: Solve for x
    x = 17,337,743,743.80/148,910.40
  6. Step 6: Final answer
    x = 116,430.71

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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.