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Finding the Fourth Proportional to 103,524.90, 155,287.35 and 47,364.90

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Solution

The fourth proportional to 103,524.90, 155,287.35 and 47,364.90 is: 71,047.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,524.90 : 155,287.35 = 47,364.90 : x
  2. Step 2: Convert to fraction form
    103,524.90/155,287.35 = 47,364.90/x
  3. Step 3: Cross multiply
    103,524.90x = 155,287.35 × 47,364.90
  4. Step 4: Simplify right side
    103,524.90x = 7,355,169,804.02
  5. Step 5: Solve for x
    x = 7,355,169,804.02/103,524.90
  6. Step 6: Final answer
    x = 71,047.35

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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.