Home / 187,403.07-258,618.28-102,518.31

Finding the Fourth Proportional to 187,403.07, 258,618.28 and 102,518.31

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Solution

The fourth proportional to 187,403.07, 258,618.28 and 102,518.31 is: 141,476.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,403.07 : 258,618.28 = 102,518.31 : x
  2. Step 2: Convert to fraction form
    187,403.07/258,618.28 = 102,518.31/x
  3. Step 3: Cross multiply
    187,403.07x = 258,618.28 × 102,518.31
  4. Step 4: Simplify right side
    187,403.07x = 26,513,109,903.55
  5. Step 5: Solve for x
    x = 26,513,109,903.55/187,403.07
  6. Step 6: Final answer
    x = 141,476.39

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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.