Home / 157,965.80-236,487.90-139,533.80

Finding the Fourth Proportional to 157,965.80, 236,487.90 and 139,533.80

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Solution

The fourth proportional to 157,965.80, 236,487.90 and 139,533.80 is: 208,893.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,965.80 : 236,487.90 = 139,533.80 : x
  2. Step 2: Convert to fraction form
    157,965.80/236,487.90 = 139,533.80/x
  3. Step 3: Cross multiply
    157,965.80x = 236,487.90 × 139,533.80
  4. Step 4: Simplify right side
    157,965.80x = 32,998,055,341.02
  5. Step 5: Solve for x
    x = 32,998,055,341.02/157,965.80
  6. Step 6: Final answer
    x = 208,893.67

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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.