Home / 151,985.03-209,750.19-84,000.54

Finding the Fourth Proportional to 151,985.03, 209,750.19 and 84,000.54

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Solution

The fourth proportional to 151,985.03, 209,750.19 and 84,000.54 is: 115,926.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,985.03 : 209,750.19 = 84,000.54 : x
  2. Step 2: Convert to fraction form
    151,985.03/209,750.19 = 84,000.54/x
  3. Step 3: Cross multiply
    151,985.03x = 209,750.19 × 84,000.54
  4. Step 4: Simplify right side
    151,985.03x = 17,619,128,576.59
  5. Step 5: Solve for x
    x = 17,619,128,576.59/151,985.03
  6. Step 6: Final answer
    x = 115,926.74

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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.