Home / 209,602.51-289,242.39-114,109.54

Finding the Fourth Proportional to 209,602.51, 289,242.39 and 114,109.54

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Solution

The fourth proportional to 209,602.51, 289,242.39 and 114,109.54 is: 157,466.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,602.51 : 289,242.39 = 114,109.54 : x
  2. Step 2: Convert to fraction form
    209,602.51/289,242.39 = 114,109.54/x
  3. Step 3: Cross multiply
    209,602.51x = 289,242.39 × 114,109.54
  4. Step 4: Simplify right side
    209,602.51x = 33,005,316,071.40
  5. Step 5: Solve for x
    x = 33,005,316,071.40/209,602.51
  6. Step 6: Final answer
    x = 157,466.23

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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.