Home / 186,009.20-256,598.06-121,516.19

Finding the Fourth Proportional to 186,009.20, 256,598.06 and 121,516.19

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Solution

The fourth proportional to 186,009.20, 256,598.06 and 121,516.19 is: 167,630.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,009.20 : 256,598.06 = 121,516.19 : x
  2. Step 2: Convert to fraction form
    186,009.20/256,598.06 = 121,516.19/x
  3. Step 3: Cross multiply
    186,009.20x = 256,598.06 × 121,516.19
  4. Step 4: Simplify right side
    186,009.20x = 31,180,819,557.88
  5. Step 5: Solve for x
    x = 31,180,819,557.88/186,009.20
  6. Step 6: Final answer
    x = 167,630.52

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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.