Home / 103,903.20-155,931.60-41,618.40

Finding the Fourth Proportional to 103,903.20, 155,931.60 and 41,618.40

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Solution

The fourth proportional to 103,903.20, 155,931.60 and 41,618.40 is: 62,458.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,903.20 : 155,931.60 = 41,618.40 : x
  2. Step 2: Convert to fraction form
    103,903.20/155,931.60 = 41,618.40/x
  3. Step 3: Cross multiply
    103,903.20x = 155,931.60 × 41,618.40
  4. Step 4: Simplify right side
    103,903.20x = 6,489,623,701.44
  5. Step 5: Solve for x
    x = 6,489,623,701.44/103,903.20
  6. Step 6: Final answer
    x = 62,458.36

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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.