Home / 106,683.23-147,216.93-66,395.72

Finding the Fourth Proportional to 106,683.23, 147,216.93 and 66,395.72

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Solution

The fourth proportional to 106,683.23, 147,216.93 and 66,395.72 is: 91,622.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,683.23 : 147,216.93 = 66,395.72 : x
  2. Step 2: Convert to fraction form
    106,683.23/147,216.93 = 66,395.72/x
  3. Step 3: Cross multiply
    106,683.23x = 147,216.93 × 66,395.72
  4. Step 4: Simplify right side
    106,683.23x = 9,774,573,327.45
  5. Step 5: Solve for x
    x = 9,774,573,327.45/106,683.23
  6. Step 6: Final answer
    x = 91,622.40

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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.