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Finding the Fourth Proportional to 154,641.09, 213,507.48 and 118,767

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Solution

The fourth proportional to 154,641.09, 213,507.48 and 118,767 is: 163,977.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,641.09 : 213,507.48 = 118,767 : x
  2. Step 2: Convert to fraction form
    154,641.09/213,507.48 = 118,767/x
  3. Step 3: Cross multiply
    154,641.09x = 213,507.48 × 118,767
  4. Step 4: Simplify right side
    154,641.09x = 25,357,642,877.16
  5. Step 5: Solve for x
    x = 25,357,642,877.16/154,641.09
  6. Step 6: Final answer
    x = 163,977.39

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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.