Home / 201,618.48-278,188.86-116,686.35

Finding the Fourth Proportional to 201,618.48, 278,188.86 and 116,686.35

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Solution

The fourth proportional to 201,618.48, 278,188.86 and 116,686.35 is: 161,001.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,618.48 : 278,188.86 = 116,686.35 : x
  2. Step 2: Convert to fraction form
    201,618.48/278,188.86 = 116,686.35/x
  3. Step 3: Cross multiply
    201,618.48x = 278,188.86 × 116,686.35
  4. Step 4: Simplify right side
    201,618.48x = 32,460,842,684.06
  5. Step 5: Solve for x
    x = 32,460,842,684.06/201,618.48
  6. Step 6: Final answer
    x = 161,001.33

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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.