Home / 187,266.63-258,427.95-120,315.27

Finding the Fourth Proportional to 187,266.63, 258,427.95 and 120,315.27

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Solution

The fourth proportional to 187,266.63, 258,427.95 and 120,315.27 is: 166,035.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,266.63 : 258,427.95 = 120,315.27 : x
  2. Step 2: Convert to fraction form
    187,266.63/258,427.95 = 120,315.27/x
  3. Step 3: Cross multiply
    187,266.63x = 258,427.95 × 120,315.27
  4. Step 4: Simplify right side
    187,266.63x = 31,092,828,579.80
  5. Step 5: Solve for x
    x = 31,092,828,579.80/187,266.63
  6. Step 6: Final answer
    x = 166,035.07

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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.