Home / 152,382.25-210,276.05-87,805.61

Finding the Fourth Proportional to 152,382.25, 210,276.05 and 87,805.61

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Solution

The fourth proportional to 152,382.25, 210,276.05 and 87,805.61 is: 121,165.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,382.25 : 210,276.05 = 87,805.61 : x
  2. Step 2: Convert to fraction form
    152,382.25/210,276.05 = 87,805.61/x
  3. Step 3: Cross multiply
    152,382.25x = 210,276.05 × 87,805.61
  4. Step 4: Simplify right side
    152,382.25x = 18,463,416,838.64
  5. Step 5: Solve for x
    x = 18,463,416,838.64/152,382.25
  6. Step 6: Final answer
    x = 121,165.14

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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.