Home / 103,426.32-142,793.64-71,583.60

Finding the Fourth Proportional to 103,426.32, 142,793.64 and 71,583.60

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Solution

The fourth proportional to 103,426.32, 142,793.64 and 71,583.60 is: 98,830.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,426.32 : 142,793.64 = 71,583.60 : x
  2. Step 2: Convert to fraction form
    103,426.32/142,793.64 = 71,583.60/x
  3. Step 3: Cross multiply
    103,426.32x = 142,793.64 × 71,583.60
  4. Step 4: Simplify right side
    103,426.32x = 10,221,682,808.30
  5. Step 5: Solve for x
    x = 10,221,682,808.30/103,426.32
  6. Step 6: Final answer
    x = 98,830.58

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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.