Home / 158,421.56-218,621.72-94,774.32

Finding the Fourth Proportional to 158,421.56, 218,621.72 and 94,774.32

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Solution

The fourth proportional to 158,421.56, 218,621.72 and 94,774.32 is: 130,788.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,421.56 : 218,621.72 = 94,774.32 : x
  2. Step 2: Convert to fraction form
    158,421.56/218,621.72 = 94,774.32/x
  3. Step 3: Cross multiply
    158,421.56x = 218,621.72 × 94,774.32
  4. Step 4: Simplify right side
    158,421.56x = 20,719,724,850.23
  5. Step 5: Solve for x
    x = 20,719,724,850.23/158,421.56
  6. Step 6: Final answer
    x = 130,788.54

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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.