Home / 105,429.05-145,492.44-57,682.25

Finding the Fourth Proportional to 105,429.05, 145,492.44 and 57,682.25

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Solution

The fourth proportional to 105,429.05, 145,492.44 and 57,682.25 is: 79,601.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,429.05 : 145,492.44 = 57,682.25 : x
  2. Step 2: Convert to fraction form
    105,429.05/145,492.44 = 57,682.25/x
  3. Step 3: Cross multiply
    105,429.05x = 145,492.44 × 57,682.25
  4. Step 4: Simplify right side
    105,429.05x = 8,392,331,297.19
  5. Step 5: Solve for x
    x = 8,392,331,297.19/105,429.05
  6. Step 6: Final answer
    x = 79,601.70

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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.