Home / 130,623.40-195,416.70-113,285.80

Finding the Fourth Proportional to 130,623.40, 195,416.70 and 113,285.80

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Solution

The fourth proportional to 130,623.40, 195,416.70 and 113,285.80 is: 169,479.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,623.40 : 195,416.70 = 113,285.80 : x
  2. Step 2: Convert to fraction form
    130,623.40/195,416.70 = 113,285.80/x
  3. Step 3: Cross multiply
    130,623.40x = 195,416.70 × 113,285.80
  4. Step 4: Simplify right side
    130,623.40x = 22,137,937,192.86
  5. Step 5: Solve for x
    x = 22,137,937,192.86/130,623.40
  6. Step 6: Final answer
    x = 169,479.11

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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.