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Finding the Fourth Proportional to 118,036.60, 162,890.51 and 64,321.60

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Solution

The fourth proportional to 118,036.60, 162,890.51 and 64,321.60 is: 88,763.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,036.60 : 162,890.51 = 64,321.60 : x
  2. Step 2: Convert to fraction form
    118,036.60/162,890.51 = 64,321.60/x
  3. Step 3: Cross multiply
    118,036.60x = 162,890.51 × 64,321.60
  4. Step 4: Simplify right side
    118,036.60x = 10,477,378,166.41
  5. Step 5: Solve for x
    x = 10,477,378,166.41/118,036.60
  6. Step 6: Final answer
    x = 88,763.81

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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.