Home / 112,850.48-155,732.76-61,863.40

Finding the Fourth Proportional to 112,850.48, 155,732.76 and 61,863.40

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Solution

The fourth proportional to 112,850.48, 155,732.76 and 61,863.40 is: 85,371.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,850.48 : 155,732.76 = 61,863.40 : x
  2. Step 2: Convert to fraction form
    112,850.48/155,732.76 = 61,863.40/x
  3. Step 3: Cross multiply
    112,850.48x = 155,732.76 × 61,863.40
  4. Step 4: Simplify right side
    112,850.48x = 9,634,158,024.98
  5. Step 5: Solve for x
    x = 9,634,158,024.98/112,850.48
  6. Step 6: Final answer
    x = 85,371.00

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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.