Home / 205,225.32-283,258.12-120,369.72

Finding the Fourth Proportional to 205,225.32, 283,258.12 and 120,369.72

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Solution

The fourth proportional to 205,225.32, 283,258.12 and 120,369.72 is: 166,137.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,225.32 : 283,258.12 = 120,369.72 : x
  2. Step 2: Convert to fraction form
    205,225.32/283,258.12 = 120,369.72/x
  3. Step 3: Cross multiply
    205,225.32x = 283,258.12 × 120,369.72
  4. Step 4: Simplify right side
    205,225.32x = 34,095,700,592.13
  5. Step 5: Solve for x
    x = 34,095,700,592.13/205,225.32
  6. Step 6: Final answer
    x = 166,137.88

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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.