Home / 156,087.72-215,401.06-84,467.74

Finding the Fourth Proportional to 156,087.72, 215,401.06 and 84,467.74

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Solution

The fourth proportional to 156,087.72, 215,401.06 and 84,467.74 is: 116,565.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,087.72 : 215,401.06 = 84,467.74 : x
  2. Step 2: Convert to fraction form
    156,087.72/215,401.06 = 84,467.74/x
  3. Step 3: Cross multiply
    156,087.72x = 215,401.06 × 84,467.74
  4. Step 4: Simplify right side
    156,087.72x = 18,194,440,731.80
  5. Step 5: Solve for x
    x = 18,194,440,731.80/156,087.72
  6. Step 6: Final answer
    x = 116,565.48

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1.5x scale

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.