Home / 124,613.94-187,018.57-86,928.90

Finding the Fourth Proportional to 124,613.94, 187,018.57 and 86,928.90

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Solution

The fourth proportional to 124,613.94, 187,018.57 and 86,928.90 is: 130,461.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,613.94 : 187,018.57 = 86,928.90 : x
  2. Step 2: Convert to fraction form
    124,613.94/187,018.57 = 86,928.90/x
  3. Step 3: Cross multiply
    124,613.94x = 187,018.57 × 86,928.90
  4. Step 4: Simplify right side
    124,613.94x = 16,257,317,977.01
  5. Step 5: Solve for x
    x = 16,257,317,977.01/124,613.94
  6. Step 6: Final answer
    x = 130,461.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.