Home / 118,868.74-178,128.15-52,247.86

Finding the Fourth Proportional to 118,868.74, 178,128.15 and 52,247.86

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Solution

The fourth proportional to 118,868.74, 178,128.15 and 52,247.86 is: 78,294.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,868.74 : 178,128.15 = 52,247.86 : x
  2. Step 2: Convert to fraction form
    118,868.74/178,128.15 = 52,247.86/x
  3. Step 3: Cross multiply
    118,868.74x = 178,128.15 × 52,247.86
  4. Step 4: Simplify right side
    118,868.74x = 9,306,814,643.26
  5. Step 5: Solve for x
    x = 9,306,814,643.26/118,868.74
  6. Step 6: Final answer
    x = 78,294.89

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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.