Home / 186,520.91-279,547.40-79,779.62

Finding the Fourth Proportional to 186,520.91, 279,547.40 and 79,779.62

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Solution

The fourth proportional to 186,520.91, 279,547.40 and 79,779.62 is: 119,569.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,520.91 : 279,547.40 = 79,779.62 : x
  2. Step 2: Convert to fraction form
    186,520.91/279,547.40 = 79,779.62/x
  3. Step 3: Cross multiply
    186,520.91x = 279,547.40 × 79,779.62
  4. Step 4: Simplify right side
    186,520.91x = 22,302,183,547.35
  5. Step 5: Solve for x
    x = 22,302,183,547.35/186,520.91
  6. Step 6: Final answer
    x = 119,569.35

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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.