Home / 102,598.12-141,473.80-66,721.60

Finding the Fourth Proportional to 102,598.12, 141,473.80 and 66,721.60

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Solution

The fourth proportional to 102,598.12, 141,473.80 and 66,721.60 is: 92,003.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,598.12 : 141,473.80 = 66,721.60 : x
  2. Step 2: Convert to fraction form
    102,598.12/141,473.80 = 66,721.60/x
  3. Step 3: Cross multiply
    102,598.12x = 141,473.80 × 66,721.60
  4. Step 4: Simplify right side
    102,598.12x = 9,439,358,294.08
  5. Step 5: Solve for x
    x = 9,439,358,294.08/102,598.12
  6. Step 6: Final answer
    x = 92,003.23

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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.