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Finding the Fourth Proportional to 154,362.52, 213,014.46 and 87,295.96

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Solution

The fourth proportional to 154,362.52, 213,014.46 and 87,295.96 is: 120,465.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,362.52 : 213,014.46 = 87,295.96 : x
  2. Step 2: Convert to fraction form
    154,362.52/213,014.46 = 87,295.96/x
  3. Step 3: Cross multiply
    154,362.52x = 213,014.46 × 87,295.96
  4. Step 4: Simplify right side
    154,362.52x = 18,595,301,779.58
  5. Step 5: Solve for x
    x = 18,595,301,779.58/154,362.52
  6. Step 6: Final answer
    x = 120,465.13

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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.