Home / 149,023.20-223,534.80-139,108.80

Finding the Fourth Proportional to 149,023.20, 223,534.80 and 139,108.80

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Solution

The fourth proportional to 149,023.20, 223,534.80 and 139,108.80 is: 208,663.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,023.20 : 223,534.80 = 139,108.80 : x
  2. Step 2: Convert to fraction form
    149,023.20/223,534.80 = 139,108.80/x
  3. Step 3: Cross multiply
    149,023.20x = 223,534.80 × 139,108.80
  4. Step 4: Simplify right side
    149,023.20x = 31,095,657,786.24
  5. Step 5: Solve for x
    x = 31,095,657,786.24/149,023.20
  6. Step 6: Final answer
    x = 208,663.20

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1.5x scale

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.