Home / 112,409.36-155,124.60-62,108

Finding the Fourth Proportional to 112,409.36, 155,124.60 and 62,108

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Solution

The fourth proportional to 112,409.36, 155,124.60 and 62,108 is: 85,708.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,409.36 : 155,124.60 = 62,108 : x
  2. Step 2: Convert to fraction form
    112,409.36/155,124.60 = 62,108/x
  3. Step 3: Cross multiply
    112,409.36x = 155,124.60 × 62,108
  4. Step 4: Simplify right side
    112,409.36x = 9,634,478,656.80
  5. Step 5: Solve for x
    x = 9,634,478,656.80/112,409.36
  6. Step 6: Final answer
    x = 85,708.86

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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.