Home / 154,312.41-231,258.44-86,876.64

Finding the Fourth Proportional to 154,312.41, 231,258.44 and 86,876.64

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Solution

The fourth proportional to 154,312.41, 231,258.44 and 86,876.64 is: 130,196.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,312.41 : 231,258.44 = 86,876.64 : x
  2. Step 2: Convert to fraction form
    154,312.41/231,258.44 = 86,876.64/x
  3. Step 3: Cross multiply
    154,312.41x = 231,258.44 × 86,876.64
  4. Step 4: Simplify right side
    154,312.41x = 20,090,955,804.46
  5. Step 5: Solve for x
    x = 20,090,955,804.46/154,312.41
  6. Step 6: Final answer
    x = 130,196.63

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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.