Home / 127,133.21-175,449.33-76,136.19

Finding the Fourth Proportional to 127,133.21, 175,449.33 and 76,136.19

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Solution

The fourth proportional to 127,133.21, 175,449.33 and 76,136.19 is: 105,071.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,133.21 : 175,449.33 = 76,136.19 : x
  2. Step 2: Convert to fraction form
    127,133.21/175,449.33 = 76,136.19/x
  3. Step 3: Cross multiply
    127,133.21x = 175,449.33 × 76,136.19
  4. Step 4: Simplify right side
    127,133.21x = 13,358,043,524.25
  5. Step 5: Solve for x
    x = 13,358,043,524.25/127,133.21
  6. Step 6: Final answer
    x = 105,071.24

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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.