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Finding the Fourth Proportional to 112,107, 154,707.66 and 61,809.24

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Solution

The fourth proportional to 112,107, 154,707.66 and 61,809.24 is: 85,296.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,107 : 154,707.66 = 61,809.24 : x
  2. Step 2: Convert to fraction form
    112,107/154,707.66 = 61,809.24/x
  3. Step 3: Cross multiply
    112,107x = 154,707.66 × 61,809.24
  4. Step 4: Simplify right side
    112,107x = 9,562,362,886.78
  5. Step 5: Solve for x
    x = 9,562,362,886.78/112,107
  6. Step 6: Final answer
    x = 85,296.75

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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.