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Finding the Fourth Proportional to 99,302.40, 148,924.80 and 40,118.40

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Solution

The fourth proportional to 99,302.40, 148,924.80 and 40,118.40 is: 60,165.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,302.40 : 148,924.80 = 40,118.40 : x
  2. Step 2: Convert to fraction form
    99,302.40/148,924.80 = 40,118.40/x
  3. Step 3: Cross multiply
    99,302.40x = 148,924.80 × 40,118.40
  4. Step 4: Simplify right side
    99,302.40x = 5,974,624,696.32
  5. Step 5: Solve for x
    x = 5,974,624,696.32/99,302.40
  6. Step 6: Final answer
    x = 60,165.96

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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.