Home / 186,776.24-257,715.96-111,331.76

Finding the Fourth Proportional to 186,776.24, 257,715.96 and 111,331.76

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Solution

The fourth proportional to 186,776.24, 257,715.96 and 111,331.76 is: 153,616.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,776.24 : 257,715.96 = 111,331.76 : x
  2. Step 2: Convert to fraction form
    186,776.24/257,715.96 = 111,331.76/x
  3. Step 3: Cross multiply
    186,776.24x = 257,715.96 × 111,331.76
  4. Step 4: Simplify right side
    186,776.24x = 28,691,971,406.89
  5. Step 5: Solve for x
    x = 28,691,971,406.89/186,776.24
  6. Step 6: Final answer
    x = 153,616.82

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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.