Home / 159,158.34-219,638.43-87,543.18

Finding the Fourth Proportional to 159,158.34, 219,638.43 and 87,543.18

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Solution

The fourth proportional to 159,158.34, 219,638.43 and 87,543.18 is: 120,809.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,158.34 : 219,638.43 = 87,543.18 : x
  2. Step 2: Convert to fraction form
    159,158.34/219,638.43 = 87,543.18/x
  3. Step 3: Cross multiply
    159,158.34x = 219,638.43 × 87,543.18
  4. Step 4: Simplify right side
    159,158.34x = 19,227,846,612.41
  5. Step 5: Solve for x
    x = 19,227,846,612.41/159,158.34
  6. Step 6: Final answer
    x = 120,809.54

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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.