Home / 112,018.93-154,586.03-61,717.93

Finding the Fourth Proportional to 112,018.93, 154,586.03 and 61,717.93

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Solution

The fourth proportional to 112,018.93, 154,586.03 and 61,717.93 is: 85,170.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,018.93 : 154,586.03 = 61,717.93 : x
  2. Step 2: Convert to fraction form
    112,018.93/154,586.03 = 61,717.93/x
  3. Step 3: Cross multiply
    112,018.93x = 154,586.03 × 61,717.93
  4. Step 4: Simplify right side
    112,018.93x = 9,540,729,083.46
  5. Step 5: Solve for x
    x = 9,540,729,083.46/112,018.93
  6. Step 6: Final answer
    x = 85,170.69

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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.