Home / 118,140.56-163,037.88-64,430

Finding the Fourth Proportional to 118,140.56, 163,037.88 and 64,430

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Solution

The fourth proportional to 118,140.56, 163,037.88 and 64,430 is: 88,915.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,140.56 : 163,037.88 = 64,430 : x
  2. Step 2: Convert to fraction form
    118,140.56/163,037.88 = 64,430/x
  3. Step 3: Cross multiply
    118,140.56x = 163,037.88 × 64,430
  4. Step 4: Simplify right side
    118,140.56x = 10,504,530,608.40
  5. Step 5: Solve for x
    x = 10,504,530,608.40/118,140.56
  6. Step 6: Final answer
    x = 88,915.53

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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.