Home / 134,856.07-186,063.01-81,114.19

Finding the Fourth Proportional to 134,856.07, 186,063.01 and 81,114.19

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Solution

The fourth proportional to 134,856.07, 186,063.01 and 81,114.19 is: 111,914.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,856.07 : 186,063.01 = 81,114.19 : x
  2. Step 2: Convert to fraction form
    134,856.07/186,063.01 = 81,114.19/x
  3. Step 3: Cross multiply
    134,856.07x = 186,063.01 × 81,114.19
  4. Step 4: Simplify right side
    134,856.07x = 15,092,350,345.11
  5. Step 5: Solve for x
    x = 15,092,350,345.11/134,856.07
  6. Step 6: Final answer
    x = 111,914.51

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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.