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Finding the Fourth Proportional to 125,240.63, 172,832.67 and 74,939.63

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Solution

The fourth proportional to 125,240.63, 172,832.67 and 74,939.63 is: 103,417.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,240.63 : 172,832.67 = 74,939.63 : x
  2. Step 2: Convert to fraction form
    125,240.63/172,832.67 = 74,939.63/x
  3. Step 3: Cross multiply
    125,240.63x = 172,832.67 × 74,939.63
  4. Step 4: Simplify right side
    125,240.63x = 12,952,015,477.55
  5. Step 5: Solve for x
    x = 12,952,015,477.55/125,240.63
  6. Step 6: Final answer
    x = 103,417.05

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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.