Home / 140,145.36-210,008.20-72,523.84

Finding the Fourth Proportional to 140,145.36, 210,008.20 and 72,523.84

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Solution

The fourth proportional to 140,145.36, 210,008.20 and 72,523.84 is: 108,677.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,145.36 : 210,008.20 = 72,523.84 : x
  2. Step 2: Convert to fraction form
    140,145.36/210,008.20 = 72,523.84/x
  3. Step 3: Cross multiply
    140,145.36x = 210,008.20 × 72,523.84
  4. Step 4: Simplify right side
    140,145.36x = 15,230,601,095.49
  5. Step 5: Solve for x
    x = 15,230,601,095.49/140,145.36
  6. Step 6: Final answer
    x = 108,677.17

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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.