Home / 121,938.90-183,822.31-113,810.55

Finding the Fourth Proportional to 121,938.90, 183,822.31 and 113,810.55

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Solution

The fourth proportional to 121,938.90, 183,822.31 and 113,810.55 is: 171,568.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,938.90 : 183,822.31 = 113,810.55 : x
  2. Step 2: Convert to fraction form
    121,938.90/183,822.31 = 113,810.55/x
  3. Step 3: Cross multiply
    121,938.90x = 183,822.31 × 113,810.55
  4. Step 4: Simplify right side
    121,938.90x = 20,920,917,634.32
  5. Step 5: Solve for x
    x = 20,920,917,634.32/121,938.90
  6. Step 6: Final answer
    x = 171,568.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.