Home / 190,302.72-262,633.76-105,427.68

Finding the Fourth Proportional to 190,302.72, 262,633.76 and 105,427.68

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Solution

The fourth proportional to 190,302.72, 262,633.76 and 105,427.68 is: 145,499.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,302.72 : 262,633.76 = 105,427.68 : x
  2. Step 2: Convert to fraction form
    190,302.72/262,633.76 = 105,427.68/x
  3. Step 3: Cross multiply
    190,302.72x = 262,633.76 × 105,427.68
  4. Step 4: Simplify right side
    190,302.72x = 27,688,866,166.17
  5. Step 5: Solve for x
    x = 27,688,866,166.17/190,302.72
  6. Step 6: Final answer
    x = 145,499.06

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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.