Home / 118,605.14-178,012.95-55,459.61

Finding the Fourth Proportional to 118,605.14, 178,012.95 and 55,459.61

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Solution

The fourth proportional to 118,605.14, 178,012.95 and 55,459.61 is: 83,238.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,605.14 : 178,012.95 = 55,459.61 : x
  2. Step 2: Convert to fraction form
    118,605.14/178,012.95 = 55,459.61/x
  3. Step 3: Cross multiply
    118,605.14x = 178,012.95 × 55,459.61
  4. Step 4: Simplify right side
    118,605.14x = 9,872,528,781.95
  5. Step 5: Solve for x
    x = 9,872,528,781.95/118,605.14
  6. Step 6: Final answer
    x = 83,238.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.