Home / 155,912.18-215,158.82-84,292.18

Finding the Fourth Proportional to 155,912.18, 215,158.82 and 84,292.18

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Solution

The fourth proportional to 155,912.18, 215,158.82 and 84,292.18 is: 116,323.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,912.18 : 215,158.82 = 84,292.18 : x
  2. Step 2: Convert to fraction form
    155,912.18/215,158.82 = 84,292.18/x
  3. Step 3: Cross multiply
    155,912.18x = 215,158.82 × 84,292.18
  4. Step 4: Simplify right side
    155,912.18x = 18,136,205,984.03
  5. Step 5: Solve for x
    x = 18,136,205,984.03/155,912.18
  6. Step 6: Final answer
    x = 116,323.21

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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.