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Finding the Fourth Proportional to 101,612.13, 140,224.72 and 56,293.06

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Solution

The fourth proportional to 101,612.13, 140,224.72 and 56,293.06 is: 77,684.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,612.13 : 140,224.72 = 56,293.06 : x
  2. Step 2: Convert to fraction form
    101,612.13/140,224.72 = 56,293.06/x
  3. Step 3: Cross multiply
    101,612.13x = 140,224.72 × 56,293.06
  4. Step 4: Simplify right side
    101,612.13x = 7,893,677,593.85
  5. Step 5: Solve for x
    x = 7,893,677,593.85/101,612.13
  6. Step 6: Final answer
    x = 77,684.40

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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.