Home / 112,243.68-154,897.20-61,256.82

Finding the Fourth Proportional to 112,243.68, 154,897.20 and 61,256.82

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Solution

The fourth proportional to 112,243.68, 154,897.20 and 61,256.82 is: 84,534.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,243.68 : 154,897.20 = 61,256.82 : x
  2. Step 2: Convert to fraction form
    112,243.68/154,897.20 = 61,256.82/x
  3. Step 3: Cross multiply
    112,243.68x = 154,897.20 × 61,256.82
  4. Step 4: Simplify right side
    112,243.68x = 9,488,509,898.90
  5. Step 5: Solve for x
    x = 9,488,509,898.90/112,243.68
  6. Step 6: Final answer
    x = 84,534.91

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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.