Home / 103,435.44-142,795.20-69,621.84

Finding the Fourth Proportional to 103,435.44, 142,795.20 and 69,621.84

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Solution

The fourth proportional to 103,435.44, 142,795.20 and 69,621.84 is: 96,114.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,435.44 : 142,795.20 = 69,621.84 : x
  2. Step 2: Convert to fraction form
    103,435.44/142,795.20 = 69,621.84/x
  3. Step 3: Cross multiply
    103,435.44x = 142,795.20 × 69,621.84
  4. Step 4: Simplify right side
    103,435.44x = 9,941,664,567.17
  5. Step 5: Solve for x
    x = 9,941,664,567.17/103,435.44
  6. Step 6: Final answer
    x = 96,114.68

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1.5x scale

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.