Home / 186,145.77-279,218.70-130,095.36

Finding the Fourth Proportional to 186,145.77, 279,218.70 and 130,095.36

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Solution

The fourth proportional to 186,145.77, 279,218.70 and 130,095.36 is: 195,143.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,145.77 : 279,218.70 = 130,095.36 : x
  2. Step 2: Convert to fraction form
    186,145.77/279,218.70 = 130,095.36/x
  3. Step 3: Cross multiply
    186,145.77x = 279,218.70 × 130,095.36
  4. Step 4: Simplify right side
    186,145.77x = 36,325,057,295.23
  5. Step 5: Solve for x
    x = 36,325,057,295.23/186,145.77
  6. Step 6: Final answer
    x = 195,143.07

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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.