Home / 117,715.49-162,447.76-64,000.47

Finding the Fourth Proportional to 117,715.49, 162,447.76 and 64,000.47

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Solution

The fourth proportional to 117,715.49, 162,447.76 and 64,000.47 is: 88,320.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,715.49 : 162,447.76 = 64,000.47 : x
  2. Step 2: Convert to fraction form
    117,715.49/162,447.76 = 64,000.47/x
  3. Step 3: Cross multiply
    117,715.49x = 162,447.76 × 64,000.47
  4. Step 4: Simplify right side
    117,715.49x = 10,396,732,990.45
  5. Step 5: Solve for x
    x = 10,396,732,990.45/117,715.49
  6. Step 6: Final answer
    x = 88,320.86

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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.