Home / 105,827.26-145,989.60-77,102.23

Finding the Fourth Proportional to 105,827.26, 145,989.60 and 77,102.23

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Solution

The fourth proportional to 105,827.26, 145,989.60 and 77,102.23 is: 106,363.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,827.26 : 145,989.60 = 77,102.23 : x
  2. Step 2: Convert to fraction form
    105,827.26/145,989.60 = 77,102.23/x
  3. Step 3: Cross multiply
    105,827.26x = 145,989.60 × 77,102.23
  4. Step 4: Simplify right side
    105,827.26x = 11,256,123,716.81
  5. Step 5: Solve for x
    x = 11,256,123,716.81/105,827.26
  6. Step 6: Final answer
    x = 106,363.18

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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.