Home / 203,355.90-280,647.93-112,740.29

Finding the Fourth Proportional to 203,355.90, 280,647.93 and 112,740.29

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Solution

The fourth proportional to 203,355.90, 280,647.93 and 112,740.29 is: 155,590.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,355.90 : 280,647.93 = 112,740.29 : x
  2. Step 2: Convert to fraction form
    203,355.90/280,647.93 = 112,740.29/x
  3. Step 3: Cross multiply
    203,355.90x = 280,647.93 × 112,740.29
  4. Step 4: Simplify right side
    203,355.90x = 31,640,327,612.86
  5. Step 5: Solve for x
    x = 31,640,327,612.86/203,355.90
  6. Step 6: Final answer
    x = 155,590.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.