Home / 144,609.09-216,631.14-99,622.50

Finding the Fourth Proportional to 144,609.09, 216,631.14 and 99,622.50

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Solution

The fourth proportional to 144,609.09, 216,631.14 and 99,622.50 is: 149,239.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,609.09 : 216,631.14 = 99,622.50 : x
  2. Step 2: Convert to fraction form
    144,609.09/216,631.14 = 99,622.50/x
  3. Step 3: Cross multiply
    144,609.09x = 216,631.14 × 99,622.50
  4. Step 4: Simplify right side
    144,609.09x = 21,581,334,163.38
  5. Step 5: Solve for x
    x = 21,581,334,163.38/144,609.09
  6. Step 6: Final answer
    x = 149,239.13

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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.