Home / 105,092.90-157,380.15-69,841.70

Finding the Fourth Proportional to 105,092.90, 157,380.15 and 69,841.70

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Solution

The fourth proportional to 105,092.90, 157,380.15 and 69,841.70 is: 104,590.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,092.90 : 157,380.15 = 69,841.70 : x
  2. Step 2: Convert to fraction form
    105,092.90/157,380.15 = 69,841.70/x
  3. Step 3: Cross multiply
    105,092.90x = 157,380.15 × 69,841.70
  4. Step 4: Simplify right side
    105,092.90x = 10,991,697,222.26
  5. Step 5: Solve for x
    x = 10,991,697,222.26/105,092.90
  6. Step 6: Final answer
    x = 104,590.29

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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.