Home / 155,765.34-214,956.27-84,145.32

Finding the Fourth Proportional to 155,765.34, 214,956.27 and 84,145.32

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Solution

The fourth proportional to 155,765.34, 214,956.27 and 84,145.32 is: 116,120.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,765.34 : 214,956.27 = 84,145.32 : x
  2. Step 2: Convert to fraction form
    155,765.34/214,956.27 = 84,145.32/x
  3. Step 3: Cross multiply
    155,765.34x = 214,956.27 × 84,145.32
  4. Step 4: Simplify right side
    155,765.34x = 18,087,564,125.16
  5. Step 5: Solve for x
    x = 18,087,564,125.16/155,765.34
  6. Step 6: Final answer
    x = 116,120.60

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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.