Home / 134,828.28-186,054.66-74,399.40

Finding the Fourth Proportional to 134,828.28, 186,054.66 and 74,399.40

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Solution

The fourth proportional to 134,828.28, 186,054.66 and 74,399.40 is: 102,666.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,828.28 : 186,054.66 = 74,399.40 : x
  2. Step 2: Convert to fraction form
    134,828.28/186,054.66 = 74,399.40/x
  3. Step 3: Cross multiply
    134,828.28x = 186,054.66 × 74,399.40
  4. Step 4: Simplify right side
    134,828.28x = 13,842,355,071.20
  5. Step 5: Solve for x
    x = 13,842,355,071.20/134,828.28
  6. Step 6: Final answer
    x = 102,666.56

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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.