Home / 155,106.64-232,485.50-78,991.64

Finding the Fourth Proportional to 155,106.64, 232,485.50 and 78,991.64

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Solution

The fourth proportional to 155,106.64, 232,485.50 and 78,991.64 is: 118,398.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,106.64 : 232,485.50 = 78,991.64 : x
  2. Step 2: Convert to fraction form
    155,106.64/232,485.50 = 78,991.64/x
  3. Step 3: Cross multiply
    155,106.64x = 232,485.50 × 78,991.64
  4. Step 4: Simplify right side
    155,106.64x = 18,364,410,921.22
  5. Step 5: Solve for x
    x = 18,364,410,921.22/155,106.64
  6. Step 6: Final answer
    x = 118,398.61

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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.