Home / 112,031.61-154,601.66-61,044.76

Finding the Fourth Proportional to 112,031.61, 154,601.66 and 61,044.76

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Solution

The fourth proportional to 112,031.61, 154,601.66 and 61,044.76 is: 84,240.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,031.61 : 154,601.66 = 61,044.76 : x
  2. Step 2: Convert to fraction form
    112,031.61/154,601.66 = 61,044.76/x
  3. Step 3: Cross multiply
    112,031.61x = 154,601.66 × 61,044.76
  4. Step 4: Simplify right side
    112,031.61x = 9,437,622,010.98
  5. Step 5: Solve for x
    x = 9,437,622,010.98/112,031.61
  6. Step 6: Final answer
    x = 84,240.71

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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.