Home / 138,269.32-190,825.95-84,590.02

Finding the Fourth Proportional to 138,269.32, 190,825.95 and 84,590.02

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Solution

The fourth proportional to 138,269.32, 190,825.95 and 84,590.02 is: 116,742.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,269.32 : 190,825.95 = 84,590.02 : x
  2. Step 2: Convert to fraction form
    138,269.32/190,825.95 = 84,590.02/x
  3. Step 3: Cross multiply
    138,269.32x = 190,825.95 × 84,590.02
  4. Step 4: Simplify right side
    138,269.32x = 16,141,970,927.02
  5. Step 5: Solve for x
    x = 16,141,970,927.02/138,269.32
  6. Step 6: Final answer
    x = 116,742.97

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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.