Home / 142,530.60-214,256.70-131,471.40

Finding the Fourth Proportional to 142,530.60, 214,256.70 and 131,471.40

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Solution

The fourth proportional to 142,530.60, 214,256.70 and 131,471.40 is: 197,632.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,530.60 : 214,256.70 = 131,471.40 : x
  2. Step 2: Convert to fraction form
    142,530.60/214,256.70 = 131,471.40/x
  3. Step 3: Cross multiply
    142,530.60x = 214,256.70 × 131,471.40
  4. Step 4: Simplify right side
    142,530.60x = 28,168,628,308.38
  5. Step 5: Solve for x
    x = 28,168,628,308.38/142,530.60
  6. Step 6: Final answer
    x = 197,632.15

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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.