Home / 112,276.18-154,967.12-74,042.60

Finding the Fourth Proportional to 112,276.18, 154,967.12 and 74,042.60

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Solution

The fourth proportional to 112,276.18, 154,967.12 and 74,042.60 is: 102,195.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,276.18 : 154,967.12 = 74,042.60 : x
  2. Step 2: Convert to fraction form
    112,276.18/154,967.12 = 74,042.60/x
  3. Step 3: Cross multiply
    112,276.18x = 154,967.12 × 74,042.60
  4. Step 4: Simplify right side
    112,276.18x = 11,474,168,479.31
  5. Step 5: Solve for x
    x = 11,474,168,479.31/112,276.18
  6. Step 6: Final answer
    x = 102,195.93

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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.