Home / 157,571.43-236,160.04-78,707.67

Finding the Fourth Proportional to 157,571.43, 236,160.04 and 78,707.67

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Solution

The fourth proportional to 157,571.43, 236,160.04 and 78,707.67 is: 117,963.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,571.43 : 236,160.04 = 78,707.67 : x
  2. Step 2: Convert to fraction form
    157,571.43/236,160.04 = 78,707.67/x
  3. Step 3: Cross multiply
    157,571.43x = 236,160.04 × 78,707.67
  4. Step 4: Simplify right side
    157,571.43x = 18,587,606,495.51
  5. Step 5: Solve for x
    x = 18,587,606,495.51/157,571.43
  6. Step 6: Final answer
    x = 117,963.05

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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.