Home / 250,145.12-345,200.40-136,967.84

Finding the Fourth Proportional to 250,145.12, 345,200.40 and 136,967.84

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Solution

The fourth proportional to 250,145.12, 345,200.40 and 136,967.84 is: 189,015.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,145.12 : 345,200.40 = 136,967.84 : x
  2. Step 2: Convert to fraction form
    250,145.12/345,200.40 = 136,967.84/x
  3. Step 3: Cross multiply
    250,145.12x = 345,200.40 × 136,967.84
  4. Step 4: Simplify right side
    250,145.12x = 47,281,353,155.14
  5. Step 5: Solve for x
    x = 47,281,353,155.14/250,145.12
  6. Step 6: Final answer
    x = 189,015.69

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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.