Home / 186,438.28-257,275.97-105,855.23

Finding the Fourth Proportional to 186,438.28, 257,275.97 and 105,855.23

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Solution

The fourth proportional to 186,438.28, 257,275.97 and 105,855.23 is: 146,075.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,438.28 : 257,275.97 = 105,855.23 : x
  2. Step 2: Convert to fraction form
    186,438.28/257,275.97 = 105,855.23/x
  3. Step 3: Cross multiply
    186,438.28x = 257,275.97 × 105,855.23
  4. Step 4: Simplify right side
    186,438.28x = 27,234,006,977.82
  5. Step 5: Solve for x
    x = 27,234,006,977.82/186,438.28
  6. Step 6: Final answer
    x = 146,075.19

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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.