Home / 155,927.22-215,179.80-84,307.29

Finding the Fourth Proportional to 155,927.22, 215,179.80 and 84,307.29

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Solution

The fourth proportional to 155,927.22, 215,179.80 and 84,307.29 is: 116,344.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,927.22 : 215,179.80 = 84,307.29 : x
  2. Step 2: Convert to fraction form
    155,927.22/215,179.80 = 84,307.29/x
  3. Step 3: Cross multiply
    155,927.22x = 215,179.80 × 84,307.29
  4. Step 4: Simplify right side
    155,927.22x = 18,141,225,800.74
  5. Step 5: Solve for x
    x = 18,141,225,800.74/155,927.22
  6. Step 6: Final answer
    x = 116,344.19

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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.