Home / 142,736.70-214,105.05-89,975.10

Finding the Fourth Proportional to 142,736.70, 214,105.05 and 89,975.10

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Solution

The fourth proportional to 142,736.70, 214,105.05 and 89,975.10 is: 134,962.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,736.70 : 214,105.05 = 89,975.10 : x
  2. Step 2: Convert to fraction form
    142,736.70/214,105.05 = 89,975.10/x
  3. Step 3: Cross multiply
    142,736.70x = 214,105.05 × 89,975.10
  4. Step 4: Simplify right side
    142,736.70x = 19,264,123,284.26
  5. Step 5: Solve for x
    x = 19,264,123,284.26/142,736.70
  6. Step 6: Final answer
    x = 134,962.65

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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.