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Finding the Fourth Proportional to 101,803.77, 140,506.07 and 56,496.31

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Solution

The fourth proportional to 101,803.77, 140,506.07 and 56,496.31 is: 77,974.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,803.77 : 140,506.07 = 56,496.31 : x
  2. Step 2: Convert to fraction form
    101,803.77/140,506.07 = 56,496.31/x
  3. Step 3: Cross multiply
    101,803.77x = 140,506.07 × 56,496.31
  4. Step 4: Simplify right side
    101,803.77x = 7,938,074,487.60
  5. Step 5: Solve for x
    x = 7,938,074,487.60/101,803.77
  6. Step 6: Final answer
    x = 77,974.27

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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.