Home / 171,102.24-236,130.06-103,140.78

Finding the Fourth Proportional to 171,102.24, 236,130.06 and 103,140.78

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Solution

The fourth proportional to 171,102.24, 236,130.06 and 103,140.78 is: 142,339.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,102.24 : 236,130.06 = 103,140.78 : x
  2. Step 2: Convert to fraction form
    171,102.24/236,130.06 = 103,140.78/x
  3. Step 3: Cross multiply
    171,102.24x = 236,130.06 × 103,140.78
  4. Step 4: Simplify right side
    171,102.24x = 24,354,638,569.85
  5. Step 5: Solve for x
    x = 24,354,638,569.85/171,102.24
  6. Step 6: Final answer
    x = 142,339.68

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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.