Home / 102,080.20-153,120.36-55,628.32

Finding the Fourth Proportional to 102,080.20, 153,120.36 and 55,628.32

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Solution

The fourth proportional to 102,080.20, 153,120.36 and 55,628.32 is: 83,442.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,080.20 : 153,120.36 = 55,628.32 : x
  2. Step 2: Convert to fraction form
    102,080.20/153,120.36 = 55,628.32/x
  3. Step 3: Cross multiply
    102,080.20x = 153,120.36 × 55,628.32
  4. Step 4: Simplify right side
    102,080.20x = 8,517,828,384.60
  5. Step 5: Solve for x
    x = 8,517,828,384.60/102,080.20
  6. Step 6: Final answer
    x = 83,442.51

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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.