Home / 109,809.13-151,538.24-61,416.29

Finding the Fourth Proportional to 109,809.13, 151,538.24 and 61,416.29

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Solution

The fourth proportional to 109,809.13, 151,538.24 and 61,416.29 is: 84,755.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,809.13 : 151,538.24 = 61,416.29 : x
  2. Step 2: Convert to fraction form
    109,809.13/151,538.24 = 61,416.29/x
  3. Step 3: Cross multiply
    109,809.13x = 151,538.24 × 61,416.29
  4. Step 4: Simplify right side
    109,809.13x = 9,306,916,493.93
  5. Step 5: Solve for x
    x = 9,306,916,493.93/109,809.13
  6. Step 6: Final answer
    x = 84,755.40

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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.