Home / 188,311.08-259,870.50-103,427.40

Finding the Fourth Proportional to 188,311.08, 259,870.50 and 103,427.40

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Solution

The fourth proportional to 188,311.08, 259,870.50 and 103,427.40 is: 142,730.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,311.08 : 259,870.50 = 103,427.40 : x
  2. Step 2: Convert to fraction form
    188,311.08/259,870.50 = 103,427.40/x
  3. Step 3: Cross multiply
    188,311.08x = 259,870.50 × 103,427.40
  4. Step 4: Simplify right side
    188,311.08x = 26,877,730,151.70
  5. Step 5: Solve for x
    x = 26,877,730,151.70/188,311.08
  6. Step 6: Final answer
    x = 142,730.48

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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.