Home / 140,102.30-210,007.65-76,825.10

Finding the Fourth Proportional to 140,102.30, 210,007.65 and 76,825.10

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Solution

The fourth proportional to 140,102.30, 210,007.65 and 76,825.10 is: 115,157.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,102.30 : 210,007.65 = 76,825.10 : x
  2. Step 2: Convert to fraction form
    140,102.30/210,007.65 = 76,825.10/x
  3. Step 3: Cross multiply
    140,102.30x = 210,007.65 × 76,825.10
  4. Step 4: Simplify right side
    140,102.30x = 16,133,858,712.02
  5. Step 5: Solve for x
    x = 16,133,858,712.02/140,102.30
  6. Step 6: Final answer
    x = 115,157.70

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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.