Home / 210,739.11-316,108.66-77,570.25

Finding the Fourth Proportional to 210,739.11, 316,108.66 and 77,570.25

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Solution

The fourth proportional to 210,739.11, 316,108.66 and 77,570.25 is: 116,355.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,739.11 : 316,108.66 = 77,570.25 : x
  2. Step 2: Convert to fraction form
    210,739.11/316,108.66 = 77,570.25/x
  3. Step 3: Cross multiply
    210,739.11x = 316,108.66 × 77,570.25
  4. Step 4: Simplify right side
    210,739.11x = 24,520,627,783.37
  5. Step 5: Solve for x
    x = 24,520,627,783.37/210,739.11
  6. Step 6: Final answer
    x = 116,355.37

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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.