Home / 112,647.31-154,625.05-99,614.91

Finding the Fourth Proportional to 112,647.31, 154,625.05 and 99,614.91

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Solution

The fourth proportional to 112,647.31, 154,625.05 and 99,614.91 is: 136,736.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,647.31 : 154,625.05 = 99,614.91 : x
  2. Step 2: Convert to fraction form
    112,647.31/154,625.05 = 99,614.91/x
  3. Step 3: Cross multiply
    112,647.31x = 154,625.05 × 99,614.91
  4. Step 4: Simplify right side
    112,647.31x = 15,402,961,143.86
  5. Step 5: Solve for x
    x = 15,402,961,143.86/112,647.31
  6. Step 6: Final answer
    x = 136,736.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.