Home / 100,429.14-150,669.02-70,904.64

Finding the Fourth Proportional to 100,429.14, 150,669.02 and 70,904.64

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Solution

The fourth proportional to 100,429.14, 150,669.02 and 70,904.64 is: 106,374.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,429.14 : 150,669.02 = 70,904.64 : x
  2. Step 2: Convert to fraction form
    100,429.14/150,669.02 = 70,904.64/x
  3. Step 3: Cross multiply
    100,429.14x = 150,669.02 × 70,904.64
  4. Step 4: Simplify right side
    100,429.14x = 10,683,132,622.25
  5. Step 5: Solve for x
    x = 10,683,132,622.25/100,429.14
  6. Step 6: Final answer
    x = 106,374.83

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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.