Home / 122,214.16-183,496.20-90,721.36

Finding the Fourth Proportional to 122,214.16, 183,496.20 and 90,721.36

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Solution

The fourth proportional to 122,214.16, 183,496.20 and 90,721.36 is: 136,211.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,214.16 : 183,496.20 = 90,721.36 : x
  2. Step 2: Convert to fraction form
    122,214.16/183,496.20 = 90,721.36/x
  3. Step 3: Cross multiply
    122,214.16x = 183,496.20 × 90,721.36
  4. Step 4: Simplify right side
    122,214.16x = 16,647,024,818.83
  5. Step 5: Solve for x
    x = 16,647,024,818.83/122,214.16
  6. Step 6: Final answer
    x = 136,211.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.