Home / 190,573.79-285,430.56-109,416.65

Finding the Fourth Proportional to 190,573.79, 285,430.56 and 109,416.65

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Solution

The fourth proportional to 190,573.79, 285,430.56 and 109,416.65 is: 163,878.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,573.79 : 285,430.56 = 109,416.65 : x
  2. Step 2: Convert to fraction form
    190,573.79/285,430.56 = 109,416.65/x
  3. Step 3: Cross multiply
    190,573.79x = 285,430.56 × 109,416.65
  4. Step 4: Simplify right side
    190,573.79x = 31,230,854,255.67
  5. Step 5: Solve for x
    x = 31,230,854,255.67/190,573.79
  6. Step 6: Final answer
    x = 163,878.02

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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.