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Finding the Fourth Proportional to 130,191.40, 195,578.70 and 124,877.80

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Solution

The fourth proportional to 130,191.40, 195,578.70 and 124,877.80 is: 187,596.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,191.40 : 195,578.70 = 124,877.80 : x
  2. Step 2: Convert to fraction form
    130,191.40/195,578.70 = 124,877.80/x
  3. Step 3: Cross multiply
    130,191.40x = 195,578.70 × 124,877.80
  4. Step 4: Simplify right side
    130,191.40x = 24,423,437,782.86
  5. Step 5: Solve for x
    x = 24,423,437,782.86/130,191.40
  6. Step 6: Final answer
    x = 187,596.40

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