Home / 101,822.85-140,513.43-56,500.47

Finding the Fourth Proportional to 101,822.85, 140,513.43 and 56,500.47

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Solution

The fourth proportional to 101,822.85, 140,513.43 and 56,500.47 is: 77,969.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,822.85 : 140,513.43 = 56,500.47 : x
  2. Step 2: Convert to fraction form
    101,822.85/140,513.43 = 56,500.47/x
  3. Step 3: Cross multiply
    101,822.85x = 140,513.43 × 56,500.47
  4. Step 4: Simplify right side
    101,822.85x = 7,939,074,836.31
  5. Step 5: Solve for x
    x = 7,939,074,836.31/101,822.85
  6. Step 6: Final answer
    x = 77,969.48

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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.