Home / 186,518.05-279,543.07-79,776.73

Finding the Fourth Proportional to 186,518.05, 279,543.07 and 79,776.73

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Solution

The fourth proportional to 186,518.05, 279,543.07 and 79,776.73 is: 119,565.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,518.05 : 279,543.07 = 79,776.73 : x
  2. Step 2: Convert to fraction form
    186,518.05/279,543.07 = 79,776.73/x
  3. Step 3: Cross multiply
    186,518.05x = 279,543.07 × 79,776.73
  4. Step 4: Simplify right side
    186,518.05x = 22,301,032,018.76
  5. Step 5: Solve for x
    x = 22,301,032,018.76/186,518.05
  6. Step 6: Final answer
    x = 119,565.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.