Home / 140,210.92-210,141.42-70,110.28

Finding the Fourth Proportional to 140,210.92, 210,141.42 and 70,110.28

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Solution

The fourth proportional to 140,210.92, 210,141.42 and 70,110.28 is: 105,077.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,210.92 : 210,141.42 = 70,110.28 : x
  2. Step 2: Convert to fraction form
    140,210.92/210,141.42 = 70,110.28/x
  3. Step 3: Cross multiply
    140,210.92x = 210,141.42 × 70,110.28
  4. Step 4: Simplify right side
    140,210.92x = 14,733,073,795.80
  5. Step 5: Solve for x
    x = 14,733,073,795.80/140,210.92
  6. Step 6: Final answer
    x = 105,077.93

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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.