Home / 140,151.71-210,263.07-40,309.76

Finding the Fourth Proportional to 140,151.71, 210,263.07 and 40,309.76

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Solution

The fourth proportional to 140,151.71, 210,263.07 and 40,309.76 is: 60,474.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,151.71 : 210,263.07 = 40,309.76 : x
  2. Step 2: Convert to fraction form
    140,151.71/210,263.07 = 40,309.76/x
  3. Step 3: Cross multiply
    140,151.71x = 210,263.07 × 40,309.76
  4. Step 4: Simplify right side
    140,151.71x = 8,475,653,888.56
  5. Step 5: Solve for x
    x = 8,475,653,888.56/140,151.71
  6. Step 6: Final answer
    x = 60,474.85

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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.