Home / 139,935.48-209,864.84-83,731.36

Finding the Fourth Proportional to 139,935.48, 209,864.84 and 83,731.36

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Solution

The fourth proportional to 139,935.48, 209,864.84 and 83,731.36 is: 125,574.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,935.48 : 209,864.84 = 83,731.36 : x
  2. Step 2: Convert to fraction form
    139,935.48/209,864.84 = 83,731.36/x
  3. Step 3: Cross multiply
    139,935.48x = 209,864.84 × 83,731.36
  4. Step 4: Simplify right side
    139,935.48x = 17,572,268,469.38
  5. Step 5: Solve for x
    x = 17,572,268,469.38/139,935.48
  6. Step 6: Final answer
    x = 125,574.08

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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.