Home / 113,759.19-170,505.95-85,588.74

Finding the Fourth Proportional to 113,759.19, 170,505.95 and 85,588.74

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Solution

The fourth proportional to 113,759.19, 170,505.95 and 85,588.74 is: 128,283.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,759.19 : 170,505.95 = 85,588.74 : x
  2. Step 2: Convert to fraction form
    113,759.19/170,505.95 = 85,588.74/x
  3. Step 3: Cross multiply
    113,759.19x = 170,505.95 × 85,588.74
  4. Step 4: Simplify right side
    113,759.19x = 14,593,388,995.06
  5. Step 5: Solve for x
    x = 14,593,388,995.06/113,759.19
  6. Step 6: Final answer
    x = 128,283.17

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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.