Home / 124,865.52-172,314.77-79,533.80

Finding the Fourth Proportional to 124,865.52, 172,314.77 and 79,533.80

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Solution

The fourth proportional to 124,865.52, 172,314.77 and 79,533.80 is: 109,756.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,865.52 : 172,314.77 = 79,533.80 : x
  2. Step 2: Convert to fraction form
    124,865.52/172,314.77 = 79,533.80/x
  3. Step 3: Cross multiply
    124,865.52x = 172,314.77 × 79,533.80
  4. Step 4: Simplify right side
    124,865.52x = 13,704,848,064.85
  5. Step 5: Solve for x
    x = 13,704,848,064.85/124,865.52
  6. Step 6: Final answer
    x = 109,756.86

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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.