Home / 147,586.57-203,722.05-87,157.46

Finding the Fourth Proportional to 147,586.57, 203,722.05 and 87,157.46

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Solution

The fourth proportional to 147,586.57, 203,722.05 and 87,157.46 is: 120,308.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,586.57 : 203,722.05 = 87,157.46 : x
  2. Step 2: Convert to fraction form
    147,586.57/203,722.05 = 87,157.46/x
  3. Step 3: Cross multiply
    147,586.57x = 203,722.05 × 87,157.46
  4. Step 4: Simplify right side
    147,586.57x = 17,755,896,132.58
  5. Step 5: Solve for x
    x = 17,755,896,132.58/147,586.57
  6. Step 6: Final answer
    x = 120,308.35

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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.