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Finding the Fourth Proportional to 201,068.12, 301,680.38 and 88,669.08

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Solution

The fourth proportional to 201,068.12, 301,680.38 and 88,669.08 is: 133,038.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,068.12 : 301,680.38 = 88,669.08 : x
  2. Step 2: Convert to fraction form
    201,068.12/301,680.38 = 88,669.08/x
  3. Step 3: Cross multiply
    201,068.12x = 301,680.38 × 88,669.08
  4. Step 4: Simplify right side
    201,068.12x = 26,749,721,970.32
  5. Step 5: Solve for x
    x = 26,749,721,970.32/201,068.12
  6. Step 6: Final answer
    x = 133,038.10

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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.