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Finding the Fourth Proportional to 99,465.88, 149,207 and 43,307.84

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Solution

The fourth proportional to 99,465.88, 149,207 and 43,307.84 is: 64,965.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,465.88 : 149,207 = 43,307.84 : x
  2. Step 2: Convert to fraction form
    99,465.88/149,207 = 43,307.84/x
  3. Step 3: Cross multiply
    99,465.88x = 149,207 × 43,307.84
  4. Step 4: Simplify right side
    99,465.88x = 6,461,832,882.88
  5. Step 5: Solve for x
    x = 6,461,832,882.88/99,465.88
  6. Step 6: Final answer
    x = 64,965.32

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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.