Home / 93,908.30-141,208.05-78,701.90

Finding the Fourth Proportional to 93,908.30, 141,208.05 and 78,701.90

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Solution

The fourth proportional to 93,908.30, 141,208.05 and 78,701.90 is: 118,342.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,908.30 : 141,208.05 = 78,701.90 : x
  2. Step 2: Convert to fraction form
    93,908.30/141,208.05 = 78,701.90/x
  3. Step 3: Cross multiply
    93,908.30x = 141,208.05 × 78,701.90
  4. Step 4: Simplify right side
    93,908.30x = 11,113,341,830.30
  5. Step 5: Solve for x
    x = 11,113,341,830.30/93,908.30
  6. Step 6: Final answer
    x = 118,342.49

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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.