Home / 131,022.93-196,534.41-86,931.39

Finding the Fourth Proportional to 131,022.93, 196,534.41 and 86,931.39

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Solution

The fourth proportional to 131,022.93, 196,534.41 and 86,931.39 is: 130,397.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,022.93 : 196,534.41 = 86,931.39 : x
  2. Step 2: Convert to fraction form
    131,022.93/196,534.41 = 86,931.39/x
  3. Step 3: Cross multiply
    131,022.93x = 196,534.41 × 86,931.39
  4. Step 4: Simplify right side
    131,022.93x = 17,085,009,444.13
  5. Step 5: Solve for x
    x = 17,085,009,444.13/131,022.93
  6. Step 6: Final answer
    x = 130,397.09

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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.