Home / 186,009.08-256,597.90-121,516.07

Finding the Fourth Proportional to 186,009.08, 256,597.90 and 121,516.07

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Solution

The fourth proportional to 186,009.08, 256,597.90 and 121,516.07 is: 167,630.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,009.08 : 256,597.90 = 121,516.07 : x
  2. Step 2: Convert to fraction form
    186,009.08/256,597.90 = 121,516.07/x
  3. Step 3: Cross multiply
    186,009.08x = 256,597.90 × 121,516.07
  4. Step 4: Simplify right side
    186,009.08x = 31,180,766,487.68
  5. Step 5: Solve for x
    x = 31,180,766,487.68/186,009.08
  6. Step 6: Final answer
    x = 167,630.35

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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.