Home / 154,367.20-213,068.64-90,725.44

Finding the Fourth Proportional to 154,367.20, 213,068.64 and 90,725.44

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Solution

The fourth proportional to 154,367.20, 213,068.64 and 90,725.44 is: 125,225.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,367.20 : 213,068.64 = 90,725.44 : x
  2. Step 2: Convert to fraction form
    154,367.20/213,068.64 = 90,725.44/x
  3. Step 3: Cross multiply
    154,367.20x = 213,068.64 × 90,725.44
  4. Step 4: Simplify right side
    154,367.20x = 19,330,746,114.20
  5. Step 5: Solve for x
    x = 19,330,746,114.20/154,367.20
  6. Step 6: Final answer
    x = 125,225.74

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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.