Home / 141,547.10-195,335.55-81,119.07

Finding the Fourth Proportional to 141,547.10, 195,335.55 and 81,119.07

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Solution

The fourth proportional to 141,547.10, 195,335.55 and 81,119.07 is: 111,944.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,547.10 : 195,335.55 = 81,119.07 : x
  2. Step 2: Convert to fraction form
    141,547.10/195,335.55 = 81,119.07/x
  3. Step 3: Cross multiply
    141,547.10x = 195,335.55 × 81,119.07
  4. Step 4: Simplify right side
    141,547.10x = 15,845,438,153.94
  5. Step 5: Solve for x
    x = 15,845,438,153.94/141,547.10
  6. Step 6: Final answer
    x = 111,944.64

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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.