Home / 142,746.60-214,580.70-131,687.40

Finding the Fourth Proportional to 142,746.60, 214,580.70 and 131,687.40

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Solution

The fourth proportional to 142,746.60, 214,580.70 and 131,687.40 is: 197,956.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,746.60 : 214,580.70 = 131,687.40 : x
  2. Step 2: Convert to fraction form
    142,746.60/214,580.70 = 131,687.40/x
  3. Step 3: Cross multiply
    142,746.60x = 214,580.70 × 131,687.40
  4. Step 4: Simplify right side
    142,746.60x = 28,257,574,473.18
  5. Step 5: Solve for x
    x = 28,257,574,473.18/142,746.60
  6. Step 6: Final answer
    x = 197,956.20

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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.