Home / 101,931.33-140,660.47-56,612.24

Finding the Fourth Proportional to 101,931.33, 140,660.47 and 56,612.24

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Solution

The fourth proportional to 101,931.33, 140,660.47 and 56,612.24 is: 78,122.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,931.33 : 140,660.47 = 56,612.24 : x
  2. Step 2: Convert to fraction form
    101,931.33/140,660.47 = 56,612.24/x
  3. Step 3: Cross multiply
    101,931.33x = 140,660.47 × 56,612.24
  4. Step 4: Simplify right side
    101,931.33x = 7,963,104,286.15
  5. Step 5: Solve for x
    x = 7,963,104,286.15/101,931.33
  6. Step 6: Final answer
    x = 78,122.24

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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.