Home / 186,074.58-256,776.91-105,509.28

Finding the Fourth Proportional to 186,074.58, 256,776.91 and 105,509.28

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Solution

The fourth proportional to 186,074.58, 256,776.91 and 105,509.28 is: 145,599.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,074.58 : 256,776.91 = 105,509.28 : x
  2. Step 2: Convert to fraction form
    186,074.58/256,776.91 = 105,509.28/x
  3. Step 3: Cross multiply
    186,074.58x = 256,776.91 × 105,509.28
  4. Step 4: Simplify right side
    186,074.58x = 27,092,346,894.72
  5. Step 5: Solve for x
    x = 27,092,346,894.72/186,074.58
  6. Step 6: Final answer
    x = 145,599.40

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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.