Home / 105,132.20-145,101.26-62,693.46

Finding the Fourth Proportional to 105,132.20, 145,101.26 and 62,693.46

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Solution

The fourth proportional to 105,132.20, 145,101.26 and 62,693.46 is: 86,528.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,132.20 : 145,101.26 = 62,693.46 : x
  2. Step 2: Convert to fraction form
    105,132.20/145,101.26 = 62,693.46/x
  3. Step 3: Cross multiply
    105,132.20x = 145,101.26 × 62,693.46
  4. Step 4: Simplify right side
    105,132.20x = 9,096,900,039.76
  5. Step 5: Solve for x
    x = 9,096,900,039.76/105,132.20
  6. Step 6: Final answer
    x = 86,528.20

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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.