Home / 186,195.48-256,915.77-121,647.55

Finding the Fourth Proportional to 186,195.48, 256,915.77 and 121,647.55

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Solution

The fourth proportional to 186,195.48, 256,915.77 and 121,647.55 is: 167,851.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,195.48 : 256,915.77 = 121,647.55 : x
  2. Step 2: Convert to fraction form
    186,195.48/256,915.77 = 121,647.55/x
  3. Step 3: Cross multiply
    186,195.48x = 256,915.77 × 121,647.55
  4. Step 4: Simplify right side
    186,195.48x = 31,253,173,663.94
  5. Step 5: Solve for x
    x = 31,253,173,663.94/186,195.48
  6. Step 6: Final answer
    x = 167,851.40

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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.