Home / 185,748.48-278,669.88-85,980.64

Finding the Fourth Proportional to 185,748.48, 278,669.88 and 85,980.64

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Solution

The fourth proportional to 185,748.48, 278,669.88 and 85,980.64 is: 128,992.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,748.48 : 278,669.88 = 85,980.64 : x
  2. Step 2: Convert to fraction form
    185,748.48/278,669.88 = 85,980.64/x
  3. Step 3: Cross multiply
    185,748.48x = 278,669.88 × 85,980.64
  4. Step 4: Simplify right side
    185,748.48x = 23,960,214,631.12
  5. Step 5: Solve for x
    x = 23,960,214,631.12/185,748.48
  6. Step 6: Final answer
    x = 128,992.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.