Home / 105,544.23-145,654.34-57,802.11

Finding the Fourth Proportional to 105,544.23, 145,654.34 and 57,802.11

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Solution

The fourth proportional to 105,544.23, 145,654.34 and 57,802.11 is: 79,768.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,544.23 : 145,654.34 = 57,802.11 : x
  2. Step 2: Convert to fraction form
    105,544.23/145,654.34 = 57,802.11/x
  3. Step 3: Cross multiply
    105,544.23x = 145,654.34 × 57,802.11
  4. Step 4: Simplify right side
    105,544.23x = 8,419,127,893.65
  5. Step 5: Solve for x
    x = 8,419,127,893.65/105,544.23
  6. Step 6: Final answer
    x = 79,768.72

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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.