Home / 138,730.54-191,345.16-84,282.44

Finding the Fourth Proportional to 138,730.54, 191,345.16 and 84,282.44

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Solution

The fourth proportional to 138,730.54, 191,345.16 and 84,282.44 is: 116,247.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,730.54 : 191,345.16 = 84,282.44 : x
  2. Step 2: Convert to fraction form
    138,730.54/191,345.16 = 84,282.44/x
  3. Step 3: Cross multiply
    138,730.54x = 191,345.16 × 84,282.44
  4. Step 4: Simplify right side
    138,730.54x = 16,127,036,966.99
  5. Step 5: Solve for x
    x = 16,127,036,966.99/138,730.54
  6. Step 6: Final answer
    x = 116,247.20

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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.