Home / 140,341.08-210,564-84,221.45

Finding the Fourth Proportional to 140,341.08, 210,564 and 84,221.45

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Solution

The fourth proportional to 140,341.08, 210,564 and 84,221.45 is: 126,363.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,341.08 : 210,564 = 84,221.45 : x
  2. Step 2: Convert to fraction form
    140,341.08/210,564 = 84,221.45/x
  3. Step 3: Cross multiply
    140,341.08x = 210,564 × 84,221.45
  4. Step 4: Simplify right side
    140,341.08x = 17,734,004,344.98
  5. Step 5: Solve for x
    x = 17,734,004,344.98/140,341.08
  6. Step 6: Final answer
    x = 126,363.60

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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.