Home / 187,139.74-258,526.04-161,945.50

Finding the Fourth Proportional to 187,139.74, 258,526.04 and 161,945.50

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Solution

The fourth proportional to 187,139.74, 258,526.04 and 161,945.50 is: 223,721.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,139.74 : 258,526.04 = 161,945.50 : x
  2. Step 2: Convert to fraction form
    187,139.74/258,526.04 = 161,945.50/x
  3. Step 3: Cross multiply
    187,139.74x = 258,526.04 × 161,945.50
  4. Step 4: Simplify right side
    187,139.74x = 41,867,128,810.82
  5. Step 5: Solve for x
    x = 41,867,128,810.82/187,139.74
  6. Step 6: Final answer
    x = 223,721.21

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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.