Home / 101,769.08-140,449.95-56,461.64

Finding the Fourth Proportional to 101,769.08, 140,449.95 and 56,461.64

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Solution

The fourth proportional to 101,769.08, 140,449.95 and 56,461.64 is: 77,921.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,769.08 : 140,449.95 = 56,461.64 : x
  2. Step 2: Convert to fraction form
    101,769.08/140,449.95 = 56,461.64/x
  3. Step 3: Cross multiply
    101,769.08x = 140,449.95 × 56,461.64
  4. Step 4: Simplify right side
    101,769.08x = 7,930,033,812.67
  5. Step 5: Solve for x
    x = 7,930,033,812.67/101,769.08
  6. Step 6: Final answer
    x = 77,921.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.