Home / 127,505.40-190,820.70-117,007.80

Finding the Fourth Proportional to 127,505.40, 190,820.70 and 117,007.80

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Solution

The fourth proportional to 127,505.40, 190,820.70 and 117,007.80 is: 175,110.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,505.40 : 190,820.70 = 117,007.80 : x
  2. Step 2: Convert to fraction form
    127,505.40/190,820.70 = 117,007.80/x
  3. Step 3: Cross multiply
    127,505.40x = 190,820.70 × 117,007.80
  4. Step 4: Simplify right side
    127,505.40x = 22,327,510,301.46
  5. Step 5: Solve for x
    x = 22,327,510,301.46/127,505.40
  6. Step 6: Final answer
    x = 175,110.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.