Home / 155,912.88-215,161.38-84,294.30

Finding the Fourth Proportional to 155,912.88, 215,161.38 and 84,294.30

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Solution

The fourth proportional to 155,912.88, 215,161.38 and 84,294.30 is: 116,327.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,912.88 : 215,161.38 = 84,294.30 : x
  2. Step 2: Convert to fraction form
    155,912.88/215,161.38 = 84,294.30/x
  3. Step 3: Cross multiply
    155,912.88x = 215,161.38 × 84,294.30
  4. Step 4: Simplify right side
    155,912.88x = 18,136,877,914.13
  5. Step 5: Solve for x
    x = 18,136,877,914.13/155,912.88
  6. Step 6: Final answer
    x = 116,327.00

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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.