Home / 138,956.19-208,463.64-53,569.23

Finding the Fourth Proportional to 138,956.19, 208,463.64 and 53,569.23

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Solution

The fourth proportional to 138,956.19, 208,463.64 and 53,569.23 is: 80,365.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,956.19 : 208,463.64 = 53,569.23 : x
  2. Step 2: Convert to fraction form
    138,956.19/208,463.64 = 53,569.23/x
  3. Step 3: Cross multiply
    138,956.19x = 208,463.64 × 53,569.23
  4. Step 4: Simplify right side
    138,956.19x = 11,167,236,677.80
  5. Step 5: Solve for x
    x = 11,167,236,677.80/138,956.19
  6. Step 6: Final answer
    x = 80,365.16

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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.