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Finding the Fourth Proportional to 125,224.19, 172,827.09 and 77,492.91

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Solution

The fourth proportional to 125,224.19, 172,827.09 and 77,492.91 is: 106,951.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,224.19 : 172,827.09 = 77,492.91 : x
  2. Step 2: Convert to fraction form
    125,224.19/172,827.09 = 77,492.91/x
  3. Step 3: Cross multiply
    125,224.19x = 172,827.09 × 77,492.91
  4. Step 4: Simplify right side
    125,224.19x = 13,392,874,130.93
  5. Step 5: Solve for x
    x = 13,392,874,130.93/125,224.19
  6. Step 6: Final answer
    x = 106,951.18

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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.