Home / 187,438.32-258,668.61-102,557.19

Finding the Fourth Proportional to 187,438.32, 258,668.61 and 102,557.19

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Solution

The fourth proportional to 187,438.32, 258,668.61 and 102,557.19 is: 141,530.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,438.32 : 258,668.61 = 102,557.19 : x
  2. Step 2: Convert to fraction form
    187,438.32/258,668.61 = 102,557.19/x
  3. Step 3: Cross multiply
    187,438.32x = 258,668.61 × 102,557.19
  4. Step 4: Simplify right side
    187,438.32x = 26,528,325,782.81
  5. Step 5: Solve for x
    x = 26,528,325,782.81/187,438.32
  6. Step 6: Final answer
    x = 141,530.96

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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.