Home / 190,710.63-285,717.09-89,322.53

Finding the Fourth Proportional to 190,710.63, 285,717.09 and 89,322.53

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Solution

The fourth proportional to 190,710.63, 285,717.09 and 89,322.53 is: 133,820.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,710.63 : 285,717.09 = 89,322.53 : x
  2. Step 2: Convert to fraction form
    190,710.63/285,717.09 = 89,322.53/x
  3. Step 3: Cross multiply
    190,710.63x = 285,717.09 × 89,322.53
  4. Step 4: Simplify right side
    190,710.63x = 25,520,971,914.45
  5. Step 5: Solve for x
    x = 25,520,971,914.45/190,710.63
  6. Step 6: Final answer
    x = 133,820.40

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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.