Home / 187,513.47-258,768.59-102,630.53

Finding the Fourth Proportional to 187,513.47, 258,768.59 and 102,630.53

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Solution

The fourth proportional to 187,513.47, 258,768.59 and 102,630.53 is: 141,630.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,513.47 : 258,768.59 = 102,630.53 : x
  2. Step 2: Convert to fraction form
    187,513.47/258,768.59 = 102,630.53/x
  3. Step 3: Cross multiply
    187,513.47x = 258,768.59 × 102,630.53
  4. Step 4: Simplify right side
    187,513.47x = 26,557,557,539.05
  5. Step 5: Solve for x
    x = 26,557,557,539.05/187,513.47
  6. Step 6: Final answer
    x = 141,630.13

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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.