Home / 155,328.80-214,410.94-136,410.05

Finding the Fourth Proportional to 155,328.80, 214,410.94 and 136,410.05

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Solution

The fourth proportional to 155,328.80, 214,410.94 and 136,410.05 is: 188,296.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,328.80 : 214,410.94 = 136,410.05 : x
  2. Step 2: Convert to fraction form
    155,328.80/214,410.94 = 136,410.05/x
  3. Step 3: Cross multiply
    155,328.80x = 214,410.94 × 136,410.05
  4. Step 4: Simplify right side
    155,328.80x = 29,247,807,240.95
  5. Step 5: Solve for x
    x = 29,247,807,240.95/155,328.80
  6. Step 6: Final answer
    x = 188,296.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.