Home / 187,341.12-258,555.72-105,685.98

Finding the Fourth Proportional to 187,341.12, 258,555.72 and 105,685.98

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Solution

The fourth proportional to 187,341.12, 258,555.72 and 105,685.98 is: 145,860.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,341.12 : 258,555.72 = 105,685.98 : x
  2. Step 2: Convert to fraction form
    187,341.12/258,555.72 = 105,685.98/x
  3. Step 3: Cross multiply
    187,341.12x = 258,555.72 × 105,685.98
  4. Step 4: Simplify right side
    187,341.12x = 27,325,714,652.81
  5. Step 5: Solve for x
    x = 27,325,714,652.81/187,341.12
  6. Step 6: Final answer
    x = 145,860.74

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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.