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Finding the Fourth Proportional to 130,010.50, 179,414.49 and 70,394.50

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Solution

The fourth proportional to 130,010.50, 179,414.49 and 70,394.50 is: 97,144.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,010.50 : 179,414.49 = 70,394.50 : x
  2. Step 2: Convert to fraction form
    130,010.50/179,414.49 = 70,394.50/x
  3. Step 3: Cross multiply
    130,010.50x = 179,414.49 × 70,394.50
  4. Step 4: Simplify right side
    130,010.50x = 12,629,793,316.31
  5. Step 5: Solve for x
    x = 12,629,793,316.31/130,010.50
  6. Step 6: Final answer
    x = 97,144.41

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1.5x scale

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.