Home / 155,897.75-215,139.44-84,277.77

Finding the Fourth Proportional to 155,897.75, 215,139.44 and 84,277.77

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Solution

The fourth proportional to 155,897.75, 215,139.44 and 84,277.77 is: 116,303.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,897.75 : 215,139.44 = 84,277.77 : x
  2. Step 2: Convert to fraction form
    155,897.75/215,139.44 = 84,277.77/x
  3. Step 3: Cross multiply
    155,897.75x = 215,139.44 × 84,277.77
  4. Step 4: Simplify right side
    155,897.75x = 18,131,471,820.86
  5. Step 5: Solve for x
    x = 18,131,471,820.86/155,897.75
  6. Step 6: Final answer
    x = 116,303.62

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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.