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Finding the Fourth Proportional to 103,287.60, 154,931.40 and 94,102.20

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Solution

The fourth proportional to 103,287.60, 154,931.40 and 94,102.20 is: 141,153.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,287.60 : 154,931.40 = 94,102.20 : x
  2. Step 2: Convert to fraction form
    103,287.60/154,931.40 = 94,102.20/x
  3. Step 3: Cross multiply
    103,287.60x = 154,931.40 × 94,102.20
  4. Step 4: Simplify right side
    103,287.60x = 14,579,385,589.08
  5. Step 5: Solve for x
    x = 14,579,385,589.08/103,287.60
  6. Step 6: Final answer
    x = 141,153.30

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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.