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Finding the Fourth Proportional to 118,852.80, 178,214.40 and 39,926.40

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Solution

The fourth proportional to 118,852.80, 178,214.40 and 39,926.40 is: 59,867.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,852.80 : 178,214.40 = 39,926.40 : x
  2. Step 2: Convert to fraction form
    118,852.80/178,214.40 = 39,926.40/x
  3. Step 3: Cross multiply
    118,852.80x = 178,214.40 × 39,926.40
  4. Step 4: Simplify right side
    118,852.80x = 7,115,459,420.16
  5. Step 5: Solve for x
    x = 7,115,459,420.16/118,852.80
  6. Step 6: Final answer
    x = 59,867.83

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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.