Home / 147,905.90-221,815.65-53,125.10

Finding the Fourth Proportional to 147,905.90, 221,815.65 and 53,125.10

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Solution

The fourth proportional to 147,905.90, 221,815.65 and 53,125.10 is: 79,672.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,905.90 : 221,815.65 = 53,125.10 : x
  2. Step 2: Convert to fraction form
    147,905.90/221,815.65 = 53,125.10/x
  3. Step 3: Cross multiply
    147,905.90x = 221,815.65 × 53,125.10
  4. Step 4: Simplify right side
    147,905.90x = 11,783,978,587.82
  5. Step 5: Solve for x
    x = 11,783,978,587.82/147,905.90
  6. Step 6: Final answer
    x = 79,672.13

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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.