Home / 122,521.10-183,684.45-67,117.10

Finding the Fourth Proportional to 122,521.10, 183,684.45 and 67,117.10

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Solution

The fourth proportional to 122,521.10, 183,684.45 and 67,117.10 is: 100,622.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,521.10 : 183,684.45 = 67,117.10 : x
  2. Step 2: Convert to fraction form
    122,521.10/183,684.45 = 67,117.10/x
  3. Step 3: Cross multiply
    122,521.10x = 183,684.45 × 67,117.10
  4. Step 4: Simplify right side
    122,521.10x = 12,328,367,599.10
  5. Step 5: Solve for x
    x = 12,328,367,599.10/122,521.10
  6. Step 6: Final answer
    x = 100,622.40

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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.