Home / 215,381.63-323,064.45-87,293.50

Finding the Fourth Proportional to 215,381.63, 323,064.45 and 87,293.50

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Solution

The fourth proportional to 215,381.63, 323,064.45 and 87,293.50 is: 130,937.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,381.63 : 323,064.45 = 87,293.50 : x
  2. Step 2: Convert to fraction form
    215,381.63/323,064.45 = 87,293.50/x
  3. Step 3: Cross multiply
    215,381.63x = 323,064.45 × 87,293.50
  4. Step 4: Simplify right side
    215,381.63x = 28,201,425,758.41
  5. Step 5: Solve for x
    x = 28,201,425,758.41/215,381.63
  6. Step 6: Final answer
    x = 130,937.00

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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.