Home / 140,039.66-210,152.89-72,633.82

Finding the Fourth Proportional to 140,039.66, 210,152.89 and 72,633.82

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Solution

The fourth proportional to 140,039.66, 210,152.89 and 72,633.82 is: 108,999.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,039.66 : 210,152.89 = 72,633.82 : x
  2. Step 2: Convert to fraction form
    140,039.66/210,152.89 = 72,633.82/x
  3. Step 3: Cross multiply
    140,039.66x = 210,152.89 × 72,633.82
  4. Step 4: Simplify right side
    140,039.66x = 15,264,207,184.74
  5. Step 5: Solve for x
    x = 15,264,207,184.74/140,039.66
  6. Step 6: Final answer
    x = 108,999.17

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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.