Home / 145,804.13-218,679.92-103,512.34

Finding the Fourth Proportional to 145,804.13, 218,679.92 and 103,512.34

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Solution

The fourth proportional to 145,804.13, 218,679.92 and 103,512.34 is: 155,249.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,804.13 : 218,679.92 = 103,512.34 : x
  2. Step 2: Convert to fraction form
    145,804.13/218,679.92 = 103,512.34/x
  3. Step 3: Cross multiply
    145,804.13x = 218,679.92 × 103,512.34
  4. Step 4: Simplify right side
    145,804.13x = 22,636,070,708.62
  5. Step 5: Solve for x
    x = 22,636,070,708.62/145,804.13
  6. Step 6: Final answer
    x = 155,249.86

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1.5x scale

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.