Home / 124,138.72-171,281.60-73,153.56

Finding the Fourth Proportional to 124,138.72, 171,281.60 and 73,153.56

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Solution

The fourth proportional to 124,138.72, 171,281.60 and 73,153.56 is: 100,934.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,138.72 : 171,281.60 = 73,153.56 : x
  2. Step 2: Convert to fraction form
    124,138.72/171,281.60 = 73,153.56/x
  3. Step 3: Cross multiply
    124,138.72x = 171,281.60 × 73,153.56
  4. Step 4: Simplify right side
    124,138.72x = 12,529,858,802.50
  5. Step 5: Solve for x
    x = 12,529,858,802.50/124,138.72
  6. Step 6: Final answer
    x = 100,934.33

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1.5x scale

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.