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Finding the Fourth Proportional to 117,866.99, 162,659.90 and 64,155.49

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Solution

The fourth proportional to 117,866.99, 162,659.90 and 64,155.49 is: 88,536.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,866.99 : 162,659.90 = 64,155.49 : x
  2. Step 2: Convert to fraction form
    117,866.99/162,659.90 = 64,155.49/x
  3. Step 3: Cross multiply
    117,866.99x = 162,659.90 × 64,155.49
  4. Step 4: Simplify right side
    117,866.99x = 10,435,525,587.85
  5. Step 5: Solve for x
    x = 10,435,525,587.85/117,866.99
  6. Step 6: Final answer
    x = 88,536.46

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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.