Home / 151,191.51-208,657.26-83,221.98

Finding the Fourth Proportional to 151,191.51, 208,657.26 and 83,221.98

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Solution

The fourth proportional to 151,191.51, 208,657.26 and 83,221.98 is: 114,853.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,191.51 : 208,657.26 = 83,221.98 : x
  2. Step 2: Convert to fraction form
    151,191.51/208,657.26 = 83,221.98/x
  3. Step 3: Cross multiply
    151,191.51x = 208,657.26 × 83,221.98
  4. Step 4: Simplify right side
    151,191.51x = 17,364,870,318.57
  5. Step 5: Solve for x
    x = 17,364,870,318.57/151,191.51
  6. Step 6: Final answer
    x = 114,853.48

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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.