Home / 105,064.11-144,985.61-57,317.45

Finding the Fourth Proportional to 105,064.11, 144,985.61 and 57,317.45

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Solution

The fourth proportional to 105,064.11, 144,985.61 and 57,317.45 is: 79,096.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,064.11 : 144,985.61 = 57,317.45 : x
  2. Step 2: Convert to fraction form
    105,064.11/144,985.61 = 57,317.45/x
  3. Step 3: Cross multiply
    105,064.11x = 144,985.61 × 57,317.45
  4. Step 4: Simplify right side
    105,064.11x = 8,310,204,440.38
  5. Step 5: Solve for x
    x = 8,310,204,440.38/105,064.11
  6. Step 6: Final answer
    x = 79,096.51

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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.