Home / 127,118.67-190,679.36-38,372.91

Finding the Fourth Proportional to 127,118.67, 190,679.36 and 38,372.91

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Solution

The fourth proportional to 127,118.67, 190,679.36 and 38,372.91 is: 57,559.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,118.67 : 190,679.36 = 38,372.91 : x
  2. Step 2: Convert to fraction form
    127,118.67/190,679.36 = 38,372.91/x
  3. Step 3: Cross multiply
    127,118.67x = 190,679.36 × 38,372.91
  4. Step 4: Simplify right side
    127,118.67x = 7,316,921,728.27
  5. Step 5: Solve for x
    x = 7,316,921,728.27/127,118.67
  6. Step 6: Final answer
    x = 57,559.77

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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.