Home / 98,170.14-135,471.74-57,886.40

Finding the Fourth Proportional to 98,170.14, 135,471.74 and 57,886.40

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Solution

The fourth proportional to 98,170.14, 135,471.74 and 57,886.40 is: 79,881.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,170.14 : 135,471.74 = 57,886.40 : x
  2. Step 2: Convert to fraction form
    98,170.14/135,471.74 = 57,886.40/x
  3. Step 3: Cross multiply
    98,170.14x = 135,471.74 × 57,886.40
  4. Step 4: Simplify right side
    98,170.14x = 7,841,971,330.34
  5. Step 5: Solve for x
    x = 7,841,971,330.34/98,170.14
  6. Step 6: Final answer
    x = 79,881.43

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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.