Home / 155,141.32-214,095.88-87,161.16

Finding the Fourth Proportional to 155,141.32, 214,095.88 and 87,161.16

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Solution

The fourth proportional to 155,141.32, 214,095.88 and 87,161.16 is: 120,282.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,141.32 : 214,095.88 = 87,161.16 : x
  2. Step 2: Convert to fraction form
    155,141.32/214,095.88 = 87,161.16/x
  3. Step 3: Cross multiply
    155,141.32x = 214,095.88 × 87,161.16
  4. Step 4: Simplify right side
    155,141.32x = 18,660,845,252.02
  5. Step 5: Solve for x
    x = 18,660,845,252.02/155,141.32
  6. Step 6: Final answer
    x = 120,282.88

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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.