Home / 102,417.48-141,256.00-66,618.92

Finding the Fourth Proportional to 102,417.48, 141,256.00 and 66,618.92

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Solution

The fourth proportional to 102,417.48, 141,256.00 and 66,618.92 is: 91,882.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,417.48 : 141,256.00 = 66,618.92 : x
  2. Step 2: Convert to fraction form
    102,417.48/141,256.00 = 66,618.92/x
  3. Step 3: Cross multiply
    102,417.48x = 141,256.00 × 66,618.92
  4. Step 4: Simplify right side
    102,417.48x = 9,410,322,599.93
  5. Step 5: Solve for x
    x = 9,410,322,599.93/102,417.48
  6. Step 6: Final answer
    x = 91,882.00

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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.