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Finding the Fourth Proportional to 103,614.60, 155,503.91 and 40,464.98

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Solution

The fourth proportional to 103,614.60, 155,503.91 and 40,464.98 is: 60,729.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,614.60 : 155,503.91 = 40,464.98 : x
  2. Step 2: Convert to fraction form
    103,614.60/155,503.91 = 40,464.98/x
  3. Step 3: Cross multiply
    103,614.60x = 155,503.91 × 40,464.98
  4. Step 4: Simplify right side
    103,614.60x = 6,292,461,931.71
  5. Step 5: Solve for x
    x = 6,292,461,931.71/103,614.60
  6. Step 6: Final answer
    x = 60,729.49

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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.