Home / 151,646.51-209,270.20-83,666.35

Finding the Fourth Proportional to 151,646.51, 209,270.20 and 83,666.35

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Solution

The fourth proportional to 151,646.51, 209,270.20 and 83,666.35 is: 115,458.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,646.51 : 209,270.20 = 83,666.35 : x
  2. Step 2: Convert to fraction form
    151,646.51/209,270.20 = 83,666.35/x
  3. Step 3: Cross multiply
    151,646.51x = 209,270.20 × 83,666.35
  4. Step 4: Simplify right side
    151,646.51x = 17,508,874,007.07
  5. Step 5: Solve for x
    x = 17,508,874,007.07/151,646.51
  6. Step 6: Final answer
    x = 115,458.47

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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.