Home / 119,629.36-165,087.70-65,913.13

Finding the Fourth Proportional to 119,629.36, 165,087.70 and 65,913.13

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Solution

The fourth proportional to 119,629.36, 165,087.70 and 65,913.13 is: 90,959.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,629.36 : 165,087.70 = 65,913.13 : x
  2. Step 2: Convert to fraction form
    119,629.36/165,087.70 = 65,913.13/x
  3. Step 3: Cross multiply
    119,629.36x = 165,087.70 × 65,913.13
  4. Step 4: Simplify right side
    119,629.36x = 10,881,447,031.50
  5. Step 5: Solve for x
    x = 10,881,447,031.50/119,629.36
  6. Step 6: Final answer
    x = 90,959.67

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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.