Home / 154,269.30-212,893.20-90,608.16

Finding the Fourth Proportional to 154,269.30, 212,893.20 and 90,608.16

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Solution

The fourth proportional to 154,269.30, 212,893.20 and 90,608.16 is: 125,040.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,269.30 : 212,893.20 = 90,608.16 : x
  2. Step 2: Convert to fraction form
    154,269.30/212,893.20 = 90,608.16/x
  3. Step 3: Cross multiply
    154,269.30x = 212,893.20 × 90,608.16
  4. Step 4: Simplify right side
    154,269.30x = 19,289,861,128.51
  5. Step 5: Solve for x
    x = 19,289,861,128.51/154,269.30
  6. Step 6: Final answer
    x = 125,040.18

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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.