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Finding the Fourth Proportional to 99,530.60, 149,094.30 and 61,975.40

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Solution

The fourth proportional to 99,530.60, 149,094.30 and 61,975.40 is: 92,837.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,530.60 : 149,094.30 = 61,975.40 : x
  2. Step 2: Convert to fraction form
    99,530.60/149,094.30 = 61,975.40/x
  3. Step 3: Cross multiply
    99,530.60x = 149,094.30 × 61,975.40
  4. Step 4: Simplify right side
    99,530.60x = 9,240,178,880.22
  5. Step 5: Solve for x
    x = 9,240,178,880.22/99,530.60
  6. Step 6: Final answer
    x = 92,837.57

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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.