Home / 84,156.74-115,995.39-73,921.58

Finding the Fourth Proportional to 84,156.74, 115,995.39 and 73,921.58

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Solution

The fourth proportional to 84,156.74, 115,995.39 and 73,921.58 is: 101,888.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,156.74 : 115,995.39 = 73,921.58 : x
  2. Step 2: Convert to fraction form
    84,156.74/115,995.39 = 73,921.58/x
  3. Step 3: Cross multiply
    84,156.74x = 115,995.39 × 73,921.58
  4. Step 4: Simplify right side
    84,156.74x = 8,574,562,501.52
  5. Step 5: Solve for x
    x = 8,574,562,501.52/84,156.74
  6. Step 6: Final answer
    x = 101,888.01

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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.