Home / 119,307.20-164,645-64,859.48

Finding the Fourth Proportional to 119,307.20, 164,645 and 64,859.48

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Solution

The fourth proportional to 119,307.20, 164,645 and 64,859.48 is: 89,506.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,307.20 : 164,645 = 64,859.48 : x
  2. Step 2: Convert to fraction form
    119,307.20/164,645 = 64,859.48/x
  3. Step 3: Cross multiply
    119,307.20x = 164,645 × 64,859.48
  4. Step 4: Simplify right side
    119,307.20x = 10,678,789,084.60
  5. Step 5: Solve for x
    x = 10,678,789,084.60/119,307.20
  6. Step 6: Final answer
    x = 89,506.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.