Home / 140,953.28-211,429.92-42,457.28

Finding the Fourth Proportional to 140,953.28, 211,429.92 and 42,457.28

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Solution

The fourth proportional to 140,953.28, 211,429.92 and 42,457.28 is: 63,685.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,953.28 : 211,429.92 = 42,457.28 : x
  2. Step 2: Convert to fraction form
    140,953.28/211,429.92 = 42,457.28/x
  3. Step 3: Cross multiply
    140,953.28x = 211,429.92 × 42,457.28
  4. Step 4: Simplify right side
    140,953.28x = 8,976,739,313.82
  5. Step 5: Solve for x
    x = 8,976,739,313.82/140,953.28
  6. Step 6: Final answer
    x = 63,685.92

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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.