Home / 137,260.16-189,403.02-76,834.16

Finding the Fourth Proportional to 137,260.16, 189,403.02 and 76,834.16

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Solution

The fourth proportional to 137,260.16, 189,403.02 and 76,834.16 is: 106,022.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,260.16 : 189,403.02 = 76,834.16 : x
  2. Step 2: Convert to fraction form
    137,260.16/189,403.02 = 76,834.16/x
  3. Step 3: Cross multiply
    137,260.16x = 189,403.02 × 76,834.16
  4. Step 4: Simplify right side
    137,260.16x = 14,552,621,943.16
  5. Step 5: Solve for x
    x = 14,552,621,943.16/137,260.16
  6. Step 6: Final answer
    x = 106,022.18

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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.