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Finding the Fourth Proportional to 158,834.98, 219,192.53 and 87,219.53

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Solution

The fourth proportional to 158,834.98, 219,192.53 and 87,219.53 is: 120,363.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,834.98 : 219,192.53 = 87,219.53 : x
  2. Step 2: Convert to fraction form
    158,834.98/219,192.53 = 87,219.53/x
  3. Step 3: Cross multiply
    158,834.98x = 219,192.53 × 87,219.53
  4. Step 4: Simplify right side
    158,834.98x = 19,117,870,459.59
  5. Step 5: Solve for x
    x = 19,117,870,459.59/158,834.98
  6. Step 6: Final answer
    x = 120,363.10

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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.