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Finding the Fourth Proportional to 173,159.70, 259,739.55 and 137,730.30

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Solution

The fourth proportional to 173,159.70, 259,739.55 and 137,730.30 is: 206,595.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,159.70 : 259,739.55 = 137,730.30 : x
  2. Step 2: Convert to fraction form
    173,159.70/259,739.55 = 137,730.30/x
  3. Step 3: Cross multiply
    173,159.70x = 259,739.55 × 137,730.30
  4. Step 4: Simplify right side
    173,159.70x = 35,774,006,143.37
  5. Step 5: Solve for x
    x = 35,774,006,143.37/173,159.70
  6. Step 6: Final answer
    x = 206,595.45

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1.5x scale

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.