Home / 104,910.40-157,431.21-42,580.90

Finding the Fourth Proportional to 104,910.40, 157,431.21 and 42,580.90

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Solution

The fourth proportional to 104,910.40, 157,431.21 and 42,580.90 is: 63,897.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,910.40 : 157,431.21 = 42,580.90 : x
  2. Step 2: Convert to fraction form
    104,910.40/157,431.21 = 42,580.90/x
  3. Step 3: Cross multiply
    104,910.40x = 157,431.21 × 42,580.90
  4. Step 4: Simplify right side
    104,910.40x = 6,703,562,609.89
  5. Step 5: Solve for x
    x = 6,703,562,609.89/104,910.40
  6. Step 6: Final answer
    x = 63,897.98

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1.5x scale

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.