Home / 187,645.21-258,886.13-107,014.77

Finding the Fourth Proportional to 187,645.21, 258,886.13 and 107,014.77

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Solution

The fourth proportional to 187,645.21, 258,886.13 and 107,014.77 is: 147,643.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,645.21 : 258,886.13 = 107,014.77 : x
  2. Step 2: Convert to fraction form
    187,645.21/258,886.13 = 107,014.77/x
  3. Step 3: Cross multiply
    187,645.21x = 258,886.13 × 107,014.77
  4. Step 4: Simplify right side
    187,645.21x = 27,704,639,123.07
  5. Step 5: Solve for x
    x = 27,704,639,123.07/187,645.21
  6. Step 6: Final answer
    x = 147,643.73

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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.