Home / 157,447.20-217,271.76-85,826.08

Finding the Fourth Proportional to 157,447.20, 217,271.76 and 85,826.08

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Solution

The fourth proportional to 157,447.20, 217,271.76 and 85,826.08 is: 118,437.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,447.20 : 217,271.76 = 85,826.08 : x
  2. Step 2: Convert to fraction form
    157,447.20/217,271.76 = 85,826.08/x
  3. Step 3: Cross multiply
    157,447.20x = 217,271.76 × 85,826.08
  4. Step 4: Simplify right side
    157,447.20x = 18,647,583,455.50
  5. Step 5: Solve for x
    x = 18,647,583,455.50/157,447.20
  6. Step 6: Final answer
    x = 118,437.06

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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.