Home / 155,645.28-214,878.96-102,806.88

Finding the Fourth Proportional to 155,645.28, 214,878.96 and 102,806.88

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Solution

The fourth proportional to 155,645.28, 214,878.96 and 102,806.88 is: 141,931.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,645.28 : 214,878.96 = 102,806.88 : x
  2. Step 2: Convert to fraction form
    155,645.28/214,878.96 = 102,806.88/x
  3. Step 3: Cross multiply
    155,645.28x = 214,878.96 × 102,806.88
  4. Step 4: Simplify right side
    155,645.28x = 22,091,035,455.24
  5. Step 5: Solve for x
    x = 22,091,035,455.24/155,645.28
  6. Step 6: Final answer
    x = 141,931.93

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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.