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Finding the Fourth Proportional to 155,069.98, 214,001.73 and 87,098.94

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Solution

The fourth proportional to 155,069.98, 214,001.73 and 87,098.94 is: 120,199.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,069.98 : 214,001.73 = 87,098.94 : x
  2. Step 2: Convert to fraction form
    155,069.98/214,001.73 = 87,098.94/x
  3. Step 3: Cross multiply
    155,069.98x = 214,001.73 × 87,098.94
  4. Step 4: Simplify right side
    155,069.98x = 18,639,323,841.17
  5. Step 5: Solve for x
    x = 18,639,323,841.17/155,069.98
  6. Step 6: Final answer
    x = 120,199.44

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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.