Home / 103,012.32-142,174.80-58,300.32

Finding the Fourth Proportional to 103,012.32, 142,174.80 and 58,300.32

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Solution

The fourth proportional to 103,012.32, 142,174.80 and 58,300.32 is: 80,464.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,012.32 : 142,174.80 = 58,300.32 : x
  2. Step 2: Convert to fraction form
    103,012.32/142,174.80 = 58,300.32/x
  3. Step 3: Cross multiply
    103,012.32x = 142,174.80 × 58,300.32
  4. Step 4: Simplify right side
    103,012.32x = 8,288,836,335.94
  5. Step 5: Solve for x
    x = 8,288,836,335.94/103,012.32
  6. Step 6: Final answer
    x = 80,464.51

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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.