Home / 136,977.24-189,036.05-76,548.00

Finding the Fourth Proportional to 136,977.24, 189,036.05 and 76,548.00

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Solution

The fourth proportional to 136,977.24, 189,036.05 and 76,548.00 is: 105,640.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,977.24 : 189,036.05 = 76,548.00 : x
  2. Step 2: Convert to fraction form
    136,977.24/189,036.05 = 76,548.00/x
  3. Step 3: Cross multiply
    136,977.24x = 189,036.05 × 76,548.00
  4. Step 4: Simplify right side
    136,977.24x = 14,470,330,801.59
  5. Step 5: Solve for x
    x = 14,470,330,801.59/136,977.24
  6. Step 6: Final answer
    x = 105,640.41

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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.