Home / 127,547.40-191,321.10-111,995.40

Finding the Fourth Proportional to 127,547.40, 191,321.10 and 111,995.40

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Solution

The fourth proportional to 127,547.40, 191,321.10 and 111,995.40 is: 167,993.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,547.40 : 191,321.10 = 111,995.40 : x
  2. Step 2: Convert to fraction form
    127,547.40/191,321.10 = 111,995.40/x
  3. Step 3: Cross multiply
    127,547.40x = 191,321.10 × 111,995.40
  4. Step 4: Simplify right side
    127,547.40x = 21,427,083,122.94
  5. Step 5: Solve for x
    x = 21,427,083,122.94/127,547.40
  6. Step 6: Final answer
    x = 167,993.10

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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.