Home / 153,296.28-211,558.83-85,313.06

Finding the Fourth Proportional to 153,296.28, 211,558.83 and 85,313.06

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Solution

The fourth proportional to 153,296.28, 211,558.83 and 85,313.06 is: 117,737.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,296.28 : 211,558.83 = 85,313.06 : x
  2. Step 2: Convert to fraction form
    153,296.28/211,558.83 = 85,313.06/x
  3. Step 3: Cross multiply
    153,296.28x = 211,558.83 × 85,313.06
  4. Step 4: Simplify right side
    153,296.28x = 18,048,730,572.95
  5. Step 5: Solve for x
    x = 18,048,730,572.95/153,296.28
  6. Step 6: Final answer
    x = 117,737.56

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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.