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Finding the Fourth Proportional to 118,801.32, 178,228.08 and 39,913.44

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Solution

The fourth proportional to 118,801.32, 178,228.08 and 39,913.44 is: 59,878.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,801.32 : 178,228.08 = 39,913.44 : x
  2. Step 2: Convert to fraction form
    118,801.32/178,228.08 = 39,913.44/x
  3. Step 3: Cross multiply
    118,801.32x = 178,228.08 × 39,913.44
  4. Step 4: Simplify right side
    118,801.32x = 7,113,695,777.40
  5. Step 5: Solve for x
    x = 7,113,695,777.40/118,801.32
  6. Step 6: Final answer
    x = 59,878.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.