Home / 161,943.58-223,312.57-139,359.16

Finding the Fourth Proportional to 161,943.58, 223,312.57 and 139,359.16

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Solution

The fourth proportional to 161,943.58, 223,312.57 and 139,359.16 is: 192,169.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,943.58 : 223,312.57 = 139,359.16 : x
  2. Step 2: Convert to fraction form
    161,943.58/223,312.57 = 139,359.16/x
  3. Step 3: Cross multiply
    161,943.58x = 223,312.57 × 139,359.16
  4. Step 4: Simplify right side
    161,943.58x = 31,120,652,172.64
  5. Step 5: Solve for x
    x = 31,120,652,172.64/161,943.58
  6. Step 6: Final answer
    x = 192,169.72

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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.