Home / 122,319.35-183,479.03-103,656.95

Finding the Fourth Proportional to 122,319.35, 183,479.03 and 103,656.95

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Solution

The fourth proportional to 122,319.35, 183,479.03 and 103,656.95 is: 155,485.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,319.35 : 183,479.03 = 103,656.95 : x
  2. Step 2: Convert to fraction form
    122,319.35/183,479.03 = 103,656.95/x
  3. Step 3: Cross multiply
    122,319.35x = 183,479.03 × 103,656.95
  4. Step 4: Simplify right side
    122,319.35x = 19,018,876,120.47
  5. Step 5: Solve for x
    x = 19,018,876,120.47/122,319.35
  6. Step 6: Final answer
    x = 155,485.43

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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.