Home / 154,407.29-231,684.77-86,993.01

Finding the Fourth Proportional to 154,407.29, 231,684.77 and 86,993.01

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Solution

The fourth proportional to 154,407.29, 231,684.77 and 86,993.01 is: 130,531.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,407.29 : 231,684.77 = 86,993.01 : x
  2. Step 2: Convert to fraction form
    154,407.29/231,684.77 = 86,993.01/x
  3. Step 3: Cross multiply
    154,407.29x = 231,684.77 × 86,993.01
  4. Step 4: Simplify right side
    154,407.29x = 20,154,955,730.94
  5. Step 5: Solve for x
    x = 20,154,955,730.94/154,407.29
  6. Step 6: Final answer
    x = 130,531.12

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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.