Home / 105,654.13-145,806.35-57,907.06

Finding the Fourth Proportional to 105,654.13, 145,806.35 and 57,907.06

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Solution

The fourth proportional to 105,654.13, 145,806.35 and 57,907.06 is: 79,913.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,654.13 : 145,806.35 = 57,907.06 : x
  2. Step 2: Convert to fraction form
    105,654.13/145,806.35 = 57,907.06/x
  3. Step 3: Cross multiply
    105,654.13x = 145,806.35 × 57,907.06
  4. Step 4: Simplify right side
    105,654.13x = 8,443,216,403.78
  5. Step 5: Solve for x
    x = 8,443,216,403.78/105,654.13
  6. Step 6: Final answer
    x = 79,913.74

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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.