Home / 119,986.18-165,486.45-111,938.02

Finding the Fourth Proportional to 119,986.18, 165,486.45 and 111,938.02

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Solution

The fourth proportional to 119,986.18, 165,486.45 and 111,938.02 is: 154,386.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,986.18 : 165,486.45 = 111,938.02 : x
  2. Step 2: Convert to fraction form
    119,986.18/165,486.45 = 111,938.02/x
  3. Step 3: Cross multiply
    119,986.18x = 165,486.45 × 111,938.02
  4. Step 4: Simplify right side
    119,986.18x = 18,524,225,549.83
  5. Step 5: Solve for x
    x = 18,524,225,549.83/119,986.18
  6. Step 6: Final answer
    x = 154,386.33

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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.