Home / 187,578.10-258,890.48-111,140.22

Finding the Fourth Proportional to 187,578.10, 258,890.48 and 111,140.22

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Solution

The fourth proportional to 187,578.10, 258,890.48 and 111,140.22 is: 153,392.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,578.10 : 258,890.48 = 111,140.22 : x
  2. Step 2: Convert to fraction form
    187,578.10/258,890.48 = 111,140.22/x
  3. Step 3: Cross multiply
    187,578.10x = 258,890.48 × 111,140.22
  4. Step 4: Simplify right side
    187,578.10x = 28,773,144,903.11
  5. Step 5: Solve for x
    x = 28,773,144,903.11/187,578.10
  6. Step 6: Final answer
    x = 153,392.88

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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.