Home / 127,145.32-190,672.08-38,371.48

Finding the Fourth Proportional to 127,145.32, 190,672.08 and 38,371.48

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Solution

The fourth proportional to 127,145.32, 190,672.08 and 38,371.48 is: 57,543.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,145.32 : 190,672.08 = 38,371.48 : x
  2. Step 2: Convert to fraction form
    127,145.32/190,672.08 = 38,371.48/x
  3. Step 3: Cross multiply
    127,145.32x = 190,672.08 × 38,371.48
  4. Step 4: Simplify right side
    127,145.32x = 7,316,369,904.28
  5. Step 5: Solve for x
    x = 7,316,369,904.28/127,145.32
  6. Step 6: Final answer
    x = 57,543.37

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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.