Home / 187,403.58-258,618.98-102,518.82

Finding the Fourth Proportional to 187,403.58, 258,618.98 and 102,518.82

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Solution

The fourth proportional to 187,403.58, 258,618.98 and 102,518.82 is: 141,477.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,403.58 : 258,618.98 = 102,518.82 : x
  2. Step 2: Convert to fraction form
    187,403.58/258,618.98 = 102,518.82/x
  3. Step 3: Cross multiply
    187,403.58x = 258,618.98 × 102,518.82
  4. Step 4: Simplify right side
    187,403.58x = 26,513,310,853.51
  5. Step 5: Solve for x
    x = 26,513,310,853.51/187,403.58
  6. Step 6: Final answer
    x = 141,477.08

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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.