Home / 151,756.06-209,423.40-83,773.08

Finding the Fourth Proportional to 151,756.06, 209,423.40 and 83,773.08

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Solution

The fourth proportional to 151,756.06, 209,423.40 and 83,773.08 is: 115,606.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,756.06 : 209,423.40 = 83,773.08 : x
  2. Step 2: Convert to fraction form
    151,756.06/209,423.40 = 83,773.08/x
  3. Step 3: Cross multiply
    151,756.06x = 209,423.40 × 83,773.08
  4. Step 4: Simplify right side
    151,756.06x = 17,544,043,242.07
  5. Step 5: Solve for x
    x = 17,544,043,242.07/151,756.06
  6. Step 6: Final answer
    x = 115,606.87

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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.