Home / 155,518.94-214,622.96-87,540.30

Finding the Fourth Proportional to 155,518.94, 214,622.96 and 87,540.30

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Solution

The fourth proportional to 155,518.94, 214,622.96 and 87,540.30 is: 120,809.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,518.94 : 214,622.96 = 87,540.30 : x
  2. Step 2: Convert to fraction form
    155,518.94/214,622.96 = 87,540.30/x
  3. Step 3: Cross multiply
    155,518.94x = 214,622.96 × 87,540.30
  4. Step 4: Simplify right side
    155,518.94x = 18,788,158,305.29
  5. Step 5: Solve for x
    x = 18,788,158,305.29/155,518.94
  6. Step 6: Final answer
    x = 120,809.45

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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.