Home / 155,417.09-214,475.90-91,758.98

Finding the Fourth Proportional to 155,417.09, 214,475.90 and 91,758.98

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Solution

The fourth proportional to 155,417.09, 214,475.90 and 91,758.98 is: 126,627.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,417.09 : 214,475.90 = 91,758.98 : x
  2. Step 2: Convert to fraction form
    155,417.09/214,475.90 = 91,758.98/x
  3. Step 3: Cross multiply
    155,417.09x = 214,475.90 × 91,758.98
  4. Step 4: Simplify right side
    155,417.09x = 19,680,088,287.41
  5. Step 5: Solve for x
    x = 19,680,088,287.41/155,417.09
  6. Step 6: Final answer
    x = 126,627.57

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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.