Home / 215,117.10-322,821.45-140,054.40

Finding the Fourth Proportional to 215,117.10, 322,821.45 and 140,054.40

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Solution

The fourth proportional to 215,117.10, 322,821.45 and 140,054.40 is: 210,176.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,117.10 : 322,821.45 = 140,054.40 : x
  2. Step 2: Convert to fraction form
    215,117.10/322,821.45 = 140,054.40/x
  3. Step 3: Cross multiply
    215,117.10x = 322,821.45 × 140,054.40
  4. Step 4: Simplify right side
    215,117.10x = 45,212,564,486.88
  5. Step 5: Solve for x
    x = 45,212,564,486.88/215,117.10
  6. Step 6: Final answer
    x = 210,176.52

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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.