Home / 154,309.62-213,068.07-118,442.82

Finding the Fourth Proportional to 154,309.62, 213,068.07 and 118,442.82

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Solution

The fourth proportional to 154,309.62, 213,068.07 and 118,442.82 is: 163,543.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,309.62 : 213,068.07 = 118,442.82 : x
  2. Step 2: Convert to fraction form
    154,309.62/213,068.07 = 118,442.82/x
  3. Step 3: Cross multiply
    154,309.62x = 213,068.07 × 118,442.82
  4. Step 4: Simplify right side
    154,309.62x = 25,236,383,062.76
  5. Step 5: Solve for x
    x = 25,236,383,062.76/154,309.62
  6. Step 6: Final answer
    x = 163,543.81

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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.