Home / 118,973.16-178,420.86-40,066.20

Finding the Fourth Proportional to 118,973.16, 178,420.86 and 40,066.20

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Solution

The fourth proportional to 118,973.16, 178,420.86 and 40,066.20 is: 60,086.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,973.16 : 178,420.86 = 40,066.20 : x
  2. Step 2: Convert to fraction form
    118,973.16/178,420.86 = 40,066.20/x
  3. Step 3: Cross multiply
    118,973.16x = 178,420.86 × 40,066.20
  4. Step 4: Simplify right side
    118,973.16x = 7,148,645,860.93
  5. Step 5: Solve for x
    x = 7,148,645,860.93/118,973.16
  6. Step 6: Final answer
    x = 60,086.21

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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.