Home / 105,301.76-145,270.18-62,835.68

Finding the Fourth Proportional to 105,301.76, 145,270.18 and 62,835.68

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Solution

The fourth proportional to 105,301.76, 145,270.18 and 62,835.68 is: 86,685.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,301.76 : 145,270.18 = 62,835.68 : x
  2. Step 2: Convert to fraction form
    105,301.76/145,270.18 = 62,835.68/x
  3. Step 3: Cross multiply
    105,301.76x = 145,270.18 × 62,835.68
  4. Step 4: Simplify right side
    105,301.76x = 9,128,150,544.02
  5. Step 5: Solve for x
    x = 9,128,150,544.02/105,301.76
  6. Step 6: Final answer
    x = 86,685.64

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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.