Home / 119,403.09-164,775.06-65,688.15

Finding the Fourth Proportional to 119,403.09, 164,775.06 and 65,688.15

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Solution

The fourth proportional to 119,403.09, 164,775.06 and 65,688.15 is: 90,648.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,403.09 : 164,775.06 = 65,688.15 : x
  2. Step 2: Convert to fraction form
    119,403.09/164,775.06 = 65,688.15/x
  3. Step 3: Cross multiply
    119,403.09x = 164,775.06 × 65,688.15
  4. Step 4: Simplify right side
    119,403.09x = 10,823,768,857.54
  5. Step 5: Solve for x
    x = 10,823,768,857.54/119,403.09
  6. Step 6: Final answer
    x = 90,648.98

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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.