Home / 112,572.21-155,348.37-61,584.36

Finding the Fourth Proportional to 112,572.21, 155,348.37 and 61,584.36

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Solution

The fourth proportional to 112,572.21, 155,348.37 and 61,584.36 is: 84,985.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,572.21 : 155,348.37 = 61,584.36 : x
  2. Step 2: Convert to fraction form
    112,572.21/155,348.37 = 61,584.36/x
  3. Step 3: Cross multiply
    112,572.21x = 155,348.37 × 61,584.36
  4. Step 4: Simplify right side
    112,572.21x = 9,567,029,943.49
  5. Step 5: Solve for x
    x = 9,567,029,943.49/112,572.21
  6. Step 6: Final answer
    x = 84,985.72

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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.