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Finding the Fourth Proportional to 128,832.54, 177,707.04 and 93,075.06

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Solution

The fourth proportional to 128,832.54, 177,707.04 and 93,075.06 is: 128,384.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,832.54 : 177,707.04 = 93,075.06 : x
  2. Step 2: Convert to fraction form
    128,832.54/177,707.04 = 93,075.06/x
  3. Step 3: Cross multiply
    128,832.54x = 177,707.04 × 93,075.06
  4. Step 4: Simplify right side
    128,832.54x = 16,540,093,410.42
  5. Step 5: Solve for x
    x = 16,540,093,410.42/128,832.54
  6. Step 6: Final answer
    x = 128,384.44

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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.