Home / 154,995.16-213,838.24-101,311.12

Finding the Fourth Proportional to 154,995.16, 213,838.24 and 101,311.12

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Solution

The fourth proportional to 154,995.16, 213,838.24 and 101,311.12 is: 139,773.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,995.16 : 213,838.24 = 101,311.12 : x
  2. Step 2: Convert to fraction form
    154,995.16/213,838.24 = 101,311.12/x
  3. Step 3: Cross multiply
    154,995.16x = 213,838.24 × 101,311.12
  4. Step 4: Simplify right side
    154,995.16x = 21,664,191,593.23
  5. Step 5: Solve for x
    x = 21,664,191,593.23/154,995.16
  6. Step 6: Final answer
    x = 139,773.34

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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.