Home / 155,923.64-215,174.93-84,303.66

Finding the Fourth Proportional to 155,923.64, 215,174.93 and 84,303.66

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Solution

The fourth proportional to 155,923.64, 215,174.93 and 84,303.66 is: 116,339.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,923.64 : 215,174.93 = 84,303.66 : x
  2. Step 2: Convert to fraction form
    155,923.64/215,174.93 = 84,303.66/x
  3. Step 3: Cross multiply
    155,923.64x = 215,174.93 × 84,303.66
  4. Step 4: Simplify right side
    155,923.64x = 18,140,033,717.73
  5. Step 5: Solve for x
    x = 18,140,033,717.73/155,923.64
  6. Step 6: Final answer
    x = 116,339.22

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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.