Home / 187,342.49-280,901.19-86,013.74

Finding the Fourth Proportional to 187,342.49, 280,901.19 and 86,013.74

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Solution

The fourth proportional to 187,342.49, 280,901.19 and 86,013.74 is: 128,968.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,342.49 : 280,901.19 = 86,013.74 : x
  2. Step 2: Convert to fraction form
    187,342.49/280,901.19 = 86,013.74/x
  3. Step 3: Cross multiply
    187,342.49x = 280,901.19 × 86,013.74
  4. Step 4: Simplify right side
    187,342.49x = 24,161,362,624.60
  5. Step 5: Solve for x
    x = 24,161,362,624.60/187,342.49
  6. Step 6: Final answer
    x = 128,968.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.