Home / 105,742.56-145,924.40-60,434.60

Finding the Fourth Proportional to 105,742.56, 145,924.40 and 60,434.60

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Solution

The fourth proportional to 105,742.56, 145,924.40 and 60,434.60 is: 83,399.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,742.56 : 145,924.40 = 60,434.60 : x
  2. Step 2: Convert to fraction form
    105,742.56/145,924.40 = 60,434.60/x
  3. Step 3: Cross multiply
    105,742.56x = 145,924.40 × 60,434.60
  4. Step 4: Simplify right side
    105,742.56x = 8,818,882,744.24
  5. Step 5: Solve for x
    x = 8,818,882,744.24/105,742.56
  6. Step 6: Final answer
    x = 83,399.56

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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.