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Finding the Fourth Proportional to 130,073.40, 195,110.10 and 100,548.90

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Solution

The fourth proportional to 130,073.40, 195,110.10 and 100,548.90 is: 150,823.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,073.40 : 195,110.10 = 100,548.90 : x
  2. Step 2: Convert to fraction form
    130,073.40/195,110.10 = 100,548.90/x
  3. Step 3: Cross multiply
    130,073.40x = 195,110.10 × 100,548.90
  4. Step 4: Simplify right side
    130,073.40x = 19,618,105,933.89
  5. Step 5: Solve for x
    x = 19,618,105,933.89/130,073.40
  6. Step 6: Final answer
    x = 150,823.35

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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.