Home / 122,511.83-169,084.62-74,792.88

Finding the Fourth Proportional to 122,511.83, 169,084.62 and 74,792.88

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Solution

The fourth proportional to 122,511.83, 169,084.62 and 74,792.88 is: 103,225.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,511.83 : 169,084.62 = 74,792.88 : x
  2. Step 2: Convert to fraction form
    122,511.83/169,084.62 = 74,792.88/x
  3. Step 3: Cross multiply
    122,511.83x = 169,084.62 × 74,792.88
  4. Step 4: Simplify right side
    122,511.83x = 12,646,325,693.51
  5. Step 5: Solve for x
    x = 12,646,325,693.51/122,511.83
  6. Step 6: Final answer
    x = 103,225.35

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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.