Home / 128,835.02-193,307.60-66,549.26

Finding the Fourth Proportional to 128,835.02, 193,307.60 and 66,549.26

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Solution

The fourth proportional to 128,835.02, 193,307.60 and 66,549.26 is: 99,852.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,835.02 : 193,307.60 = 66,549.26 : x
  2. Step 2: Convert to fraction form
    128,835.02/193,307.60 = 66,549.26/x
  3. Step 3: Cross multiply
    128,835.02x = 193,307.60 × 66,549.26
  4. Step 4: Simplify right side
    128,835.02x = 12,864,476,932.21
  5. Step 5: Solve for x
    x = 12,864,476,932.21/128,835.02
  6. Step 6: Final answer
    x = 99,852.33

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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.