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Finding the Fourth Proportional to 112,295.39, 154,782.99 and 79,600.77

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Solution

The fourth proportional to 112,295.39, 154,782.99 and 79,600.77 is: 109,718.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,295.39 : 154,782.99 = 79,600.77 : x
  2. Step 2: Convert to fraction form
    112,295.39/154,782.99 = 79,600.77/x
  3. Step 3: Cross multiply
    112,295.39x = 154,782.99 × 79,600.77
  4. Step 4: Simplify right side
    112,295.39x = 12,320,845,186.90
  5. Step 5: Solve for x
    x = 12,320,845,186.90/112,295.39
  6. Step 6: Final answer
    x = 109,718.18

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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.