Home / 136,485.20-188,349.07-76,055.28

Finding the Fourth Proportional to 136,485.20, 188,349.07 and 76,055.28

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Solution

The fourth proportional to 136,485.20, 188,349.07 and 76,055.28 is: 104,956.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,485.20 : 188,349.07 = 76,055.28 : x
  2. Step 2: Convert to fraction form
    136,485.20/188,349.07 = 76,055.28/x
  3. Step 3: Cross multiply
    136,485.20x = 188,349.07 × 76,055.28
  4. Step 4: Simplify right side
    136,485.20x = 14,324,941,246.38
  5. Step 5: Solve for x
    x = 14,324,941,246.38/136,485.20
  6. Step 6: Final answer
    x = 104,956.00

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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.