Home / 78,194.42-117,291.65-19,030.09

Finding the Fourth Proportional to 78,194.42, 117,291.65 and 19,030.09

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Solution

The fourth proportional to 78,194.42, 117,291.65 and 19,030.09 is: 28,545.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,194.42 : 117,291.65 = 19,030.09 : x
  2. Step 2: Convert to fraction form
    78,194.42/117,291.65 = 19,030.09/x
  3. Step 3: Cross multiply
    78,194.42x = 117,291.65 × 19,030.09
  4. Step 4: Simplify right side
    78,194.42x = 2,232,070,707.21
  5. Step 5: Solve for x
    x = 2,232,070,707.21/78,194.42
  6. Step 6: Final answer
    x = 28,545.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.