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Finding the Fourth Proportional to 152,393.87, 210,285.58 and 87,862.39

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Solution

The fourth proportional to 152,393.87, 210,285.58 and 87,862.39 is: 121,239.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,393.87 : 210,285.58 = 87,862.39 : x
  2. Step 2: Convert to fraction form
    152,393.87/210,285.58 = 87,862.39/x
  3. Step 3: Cross multiply
    152,393.87x = 210,285.58 × 87,862.39
  4. Step 4: Simplify right side
    152,393.87x = 18,476,192,150.60
  5. Step 5: Solve for x
    x = 18,476,192,150.60/152,393.87
  6. Step 6: Final answer
    x = 121,239.73

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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.