Home / 155,927.98-215,180.47-84,307.83

Finding the Fourth Proportional to 155,927.98, 215,180.47 and 84,307.83

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Solution

The fourth proportional to 155,927.98, 215,180.47 and 84,307.83 is: 116,344.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,927.98 : 215,180.47 = 84,307.83 : x
  2. Step 2: Convert to fraction form
    155,927.98/215,180.47 = 84,307.83/x
  3. Step 3: Cross multiply
    155,927.98x = 215,180.47 × 84,307.83
  4. Step 4: Simplify right side
    155,927.98x = 18,141,398,273.31
  5. Step 5: Solve for x
    x = 18,141,398,273.31/155,927.98
  6. Step 6: Final answer
    x = 116,344.73

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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.