Home / 106,530.66-146,956.95-86,410.26

Finding the Fourth Proportional to 106,530.66, 146,956.95 and 86,410.26

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Solution

The fourth proportional to 106,530.66, 146,956.95 and 86,410.26 is: 119,201.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,530.66 : 146,956.95 = 86,410.26 : x
  2. Step 2: Convert to fraction form
    106,530.66/146,956.95 = 86,410.26/x
  3. Step 3: Cross multiply
    106,530.66x = 146,956.95 × 86,410.26
  4. Step 4: Simplify right side
    106,530.66x = 12,698,588,258.31
  5. Step 5: Solve for x
    x = 12,698,588,258.31/106,530.66
  6. Step 6: Final answer
    x = 119,201.25

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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.