Home / 137,254.22-205,916.83-80,376.16

Finding the Fourth Proportional to 137,254.22, 205,916.83 and 80,376.16

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Solution

The fourth proportional to 137,254.22, 205,916.83 and 80,376.16 is: 120,585.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,254.22 : 205,916.83 = 80,376.16 : x
  2. Step 2: Convert to fraction form
    137,254.22/205,916.83 = 80,376.16/x
  3. Step 3: Cross multiply
    137,254.22x = 205,916.83 × 80,376.16
  4. Step 4: Simplify right side
    137,254.22x = 16,550,803,873.83
  5. Step 5: Solve for x
    x = 16,550,803,873.83/137,254.22
  6. Step 6: Final answer
    x = 120,585.03

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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.