Home / 102,665.04-141,673.28-57,348.24

Finding the Fourth Proportional to 102,665.04, 141,673.28 and 57,348.24

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Solution

The fourth proportional to 102,665.04, 141,673.28 and 57,348.24 is: 79,138.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,665.04 : 141,673.28 = 57,348.24 : x
  2. Step 2: Convert to fraction form
    102,665.04/141,673.28 = 57,348.24/x
  3. Step 3: Cross multiply
    102,665.04x = 141,673.28 × 57,348.24
  4. Step 4: Simplify right side
    102,665.04x = 8,124,713,263.03
  5. Step 5: Solve for x
    x = 8,124,713,263.03/102,665.04
  6. Step 6: Final answer
    x = 79,138.07

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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.