Home / 158,660.51-238,061.84-86,637.11

Finding the Fourth Proportional to 158,660.51, 238,061.84 and 86,637.11

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Solution

The fourth proportional to 158,660.51, 238,061.84 and 86,637.11 is: 129,994.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,660.51 : 238,061.84 = 86,637.11 : x
  2. Step 2: Convert to fraction form
    158,660.51/238,061.84 = 86,637.11/x
  3. Step 3: Cross multiply
    158,660.51x = 238,061.84 × 86,637.11
  4. Step 4: Simplify right side
    158,660.51x = 20,624,988,195.39
  5. Step 5: Solve for x
    x = 20,624,988,195.39/158,660.51
  6. Step 6: Final answer
    x = 129,994.47

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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.