Home / 155,817.45-215,028.07-84,197.47

Finding the Fourth Proportional to 155,817.45, 215,028.07 and 84,197.47

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Solution

The fourth proportional to 155,817.45, 215,028.07 and 84,197.47 is: 116,192.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,817.45 : 215,028.07 = 84,197.47 : x
  2. Step 2: Convert to fraction form
    155,817.45/215,028.07 = 84,197.47/x
  3. Step 3: Cross multiply
    155,817.45x = 215,028.07 × 84,197.47
  4. Step 4: Simplify right side
    155,817.45x = 18,104,819,472.98
  5. Step 5: Solve for x
    x = 18,104,819,472.98/155,817.45
  6. Step 6: Final answer
    x = 116,192.50

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1.5x scale

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.