Home / 101,600.39-140,207.04-56,278.22

Finding the Fourth Proportional to 101,600.39, 140,207.04 and 56,278.22

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Solution

The fourth proportional to 101,600.39, 140,207.04 and 56,278.22 is: 77,663.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,600.39 : 140,207.04 = 56,278.22 : x
  2. Step 2: Convert to fraction form
    101,600.39/140,207.04 = 56,278.22/x
  3. Step 3: Cross multiply
    101,600.39x = 140,207.04 × 56,278.22
  4. Step 4: Simplify right side
    101,600.39x = 7,890,601,941.63
  5. Step 5: Solve for x
    x = 7,890,601,941.63/101,600.39
  6. Step 6: Final answer
    x = 77,663.11

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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.