Home / 154,826.34-213,656.31-85,915.32

Finding the Fourth Proportional to 154,826.34, 213,656.31 and 85,915.32

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Solution

The fourth proportional to 154,826.34, 213,656.31 and 85,915.32 is: 118,560.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,826.34 : 213,656.31 = 85,915.32 : x
  2. Step 2: Convert to fraction form
    154,826.34/213,656.31 = 85,915.32/x
  3. Step 3: Cross multiply
    154,826.34x = 213,656.31 × 85,915.32
  4. Step 4: Simplify right side
    154,826.34x = 18,356,350,243.67
  5. Step 5: Solve for x
    x = 18,356,350,243.67/154,826.34
  6. Step 6: Final answer
    x = 118,560.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.