Home / 156,738.85-235,209.08-86,668.45

Finding the Fourth Proportional to 156,738.85, 235,209.08 and 86,668.45

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Solution

The fourth proportional to 156,738.85, 235,209.08 and 86,668.45 is: 130,058.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,738.85 : 235,209.08 = 86,668.45 : x
  2. Step 2: Convert to fraction form
    156,738.85/235,209.08 = 86,668.45/x
  3. Step 3: Cross multiply
    156,738.85x = 235,209.08 × 86,668.45
  4. Step 4: Simplify right side
    156,738.85x = 20,385,206,389.53
  5. Step 5: Solve for x
    x = 20,385,206,389.53/156,738.85
  6. Step 6: Final answer
    x = 130,058.41

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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.