Home / 137,730.36-190,107.27-89,331.24

Finding the Fourth Proportional to 137,730.36, 190,107.27 and 89,331.24

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Solution

The fourth proportional to 137,730.36, 190,107.27 and 89,331.24 is: 123,302.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,730.36 : 190,107.27 = 89,331.24 : x
  2. Step 2: Convert to fraction form
    137,730.36/190,107.27 = 89,331.24/x
  3. Step 3: Cross multiply
    137,730.36x = 190,107.27 × 89,331.24
  4. Step 4: Simplify right side
    137,730.36x = 16,982,518,162.11
  5. Step 5: Solve for x
    x = 16,982,518,162.11/137,730.36
  6. Step 6: Final answer
    x = 123,302.65

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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.