Home / 134,928.59-186,208.74-74,499.04

Finding the Fourth Proportional to 134,928.59, 186,208.74 and 74,499.04

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Solution

The fourth proportional to 134,928.59, 186,208.74 and 74,499.04 is: 102,812.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,928.59 : 186,208.74 = 74,499.04 : x
  2. Step 2: Convert to fraction form
    134,928.59/186,208.74 = 74,499.04/x
  3. Step 3: Cross multiply
    134,928.59x = 186,208.74 × 74,499.04
  4. Step 4: Simplify right side
    134,928.59x = 13,872,372,602.37
  5. Step 5: Solve for x
    x = 13,872,372,602.37/134,928.59
  6. Step 6: Final answer
    x = 102,812.70

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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.