Home / 103,713.20-155,646.60-41,428.40

Finding the Fourth Proportional to 103,713.20, 155,646.60 and 41,428.40

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Solution

The fourth proportional to 103,713.20, 155,646.60 and 41,428.40 is: 62,173.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,713.20 : 155,646.60 = 41,428.40 : x
  2. Step 2: Convert to fraction form
    103,713.20/155,646.60 = 41,428.40/x
  3. Step 3: Cross multiply
    103,713.20x = 155,646.60 × 41,428.40
  4. Step 4: Simplify right side
    103,713.20x = 6,448,189,603.44
  5. Step 5: Solve for x
    x = 6,448,189,603.44/103,713.20
  6. Step 6: Final answer
    x = 62,173.28

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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.