Home / 155,155.80-214,216.38-119,279.64

Finding the Fourth Proportional to 155,155.80, 214,216.38 and 119,279.64

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Solution

The fourth proportional to 155,155.80, 214,216.38 and 119,279.64 is: 164,683.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,155.80 : 214,216.38 = 119,279.64 : x
  2. Step 2: Convert to fraction form
    155,155.80/214,216.38 = 119,279.64/x
  3. Step 3: Cross multiply
    155,155.80x = 214,216.38 × 119,279.64
  4. Step 4: Simplify right side
    155,155.80x = 25,551,652,688.50
  5. Step 5: Solve for x
    x = 25,551,652,688.50/155,155.80
  6. Step 6: Final answer
    x = 164,683.84

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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.