Home / 147,316.68-203,289.78-83,646.12

Finding the Fourth Proportional to 147,316.68, 203,289.78 and 83,646.12

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Solution

The fourth proportional to 147,316.68, 203,289.78 and 83,646.12 is: 115,427.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,316.68 : 203,289.78 = 83,646.12 : x
  2. Step 2: Convert to fraction form
    147,316.68/203,289.78 = 83,646.12/x
  3. Step 3: Cross multiply
    147,316.68x = 203,289.78 × 83,646.12
  4. Step 4: Simplify right side
    147,316.68x = 17,004,401,332.65
  5. Step 5: Solve for x
    x = 17,004,401,332.65/147,316.68
  6. Step 6: Final answer
    x = 115,427.54

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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.