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Finding the Fourth Proportional to 158,887.53, 219,266.60 and 87,269.22

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Solution

The fourth proportional to 158,887.53, 219,266.60 and 87,269.22 is: 120,432.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,887.53 : 219,266.60 = 87,269.22 : x
  2. Step 2: Convert to fraction form
    158,887.53/219,266.60 = 87,269.22/x
  3. Step 3: Cross multiply
    158,887.53x = 219,266.60 × 87,269.22
  4. Step 4: Simplify right side
    158,887.53x = 19,135,225,154.05
  5. Step 5: Solve for x
    x = 19,135,225,154.05/158,887.53
  6. Step 6: Final answer
    x = 120,432.52

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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.