Home / 210,005.20-314,971.35-76,816.90

Finding the Fourth Proportional to 210,005.20, 314,971.35 and 76,816.90

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Solution

The fourth proportional to 210,005.20, 314,971.35 and 76,816.90 is: 115,212.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,005.20 : 314,971.35 = 76,816.90 : x
  2. Step 2: Convert to fraction form
    210,005.20/314,971.35 = 76,816.90/x
  3. Step 3: Cross multiply
    210,005.20x = 314,971.35 × 76,816.90
  4. Step 4: Simplify right side
    210,005.20x = 24,195,122,695.82
  5. Step 5: Solve for x
    x = 24,195,122,695.82/210,005.20
  6. Step 6: Final answer
    x = 115,212.02

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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.