Home / 127,489.09-175,938.26-70,129.89

Finding the Fourth Proportional to 127,489.09, 175,938.26 and 70,129.89

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Solution

The fourth proportional to 127,489.09, 175,938.26 and 70,129.89 is: 96,781.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,489.09 : 175,938.26 = 70,129.89 : x
  2. Step 2: Convert to fraction form
    127,489.09/175,938.26 = 70,129.89/x
  3. Step 3: Cross multiply
    127,489.09x = 175,938.26 × 70,129.89
  4. Step 4: Simplify right side
    127,489.09x = 12,338,529,590.25
  5. Step 5: Solve for x
    x = 12,338,529,590.25/127,489.09
  6. Step 6: Final answer
    x = 96,781.06

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1.5x scale

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.