Home / 130,643.27-180,290.42-74,054.64

Finding the Fourth Proportional to 130,643.27, 180,290.42 and 74,054.64

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Solution

The fourth proportional to 130,643.27, 180,290.42 and 74,054.64 is: 102,196.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,643.27 : 180,290.42 = 74,054.64 : x
  2. Step 2: Convert to fraction form
    130,643.27/180,290.42 = 74,054.64/x
  3. Step 3: Cross multiply
    130,643.27x = 180,290.42 × 74,054.64
  4. Step 4: Simplify right side
    130,643.27x = 13,351,342,148.55
  5. Step 5: Solve for x
    x = 13,351,342,148.55/130,643.27
  6. Step 6: Final answer
    x = 102,196.94

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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.