Home / 127,153.35-190,288.53-79,102.23

Finding the Fourth Proportional to 127,153.35, 190,288.53 and 79,102.23

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Solution

The fourth proportional to 127,153.35, 190,288.53 and 79,102.23 is: 118,378.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,153.35 : 190,288.53 = 79,102.23 : x
  2. Step 2: Convert to fraction form
    127,153.35/190,288.53 = 79,102.23/x
  3. Step 3: Cross multiply
    127,153.35x = 190,288.53 × 79,102.23
  4. Step 4: Simplify right side
    127,153.35x = 15,052,247,066.42
  5. Step 5: Solve for x
    x = 15,052,247,066.42/127,153.35
  6. Step 6: Final answer
    x = 118,378.69

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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.