Home / 104,905.40-157,423.71-42,575.90

Finding the Fourth Proportional to 104,905.40, 157,423.71 and 42,575.90

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Solution

The fourth proportional to 104,905.40, 157,423.71 and 42,575.90 is: 63,890.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,905.40 : 157,423.71 = 42,575.90 : x
  2. Step 2: Convert to fraction form
    104,905.40/157,423.71 = 42,575.90/x
  3. Step 3: Cross multiply
    104,905.40x = 157,423.71 × 42,575.90
  4. Step 4: Simplify right side
    104,905.40x = 6,702,456,134.59
  5. Step 5: Solve for x
    x = 6,702,456,134.59/104,905.40
  6. Step 6: Final answer
    x = 63,890.48

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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.