Home / 191,929.26-287,770.68-79,686.95

Finding the Fourth Proportional to 191,929.26, 287,770.68 and 79,686.95

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Solution

The fourth proportional to 191,929.26, 287,770.68 and 79,686.95 is: 119,479.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,929.26 : 287,770.68 = 79,686.95 : x
  2. Step 2: Convert to fraction form
    191,929.26/287,770.68 = 79,686.95/x
  3. Step 3: Cross multiply
    191,929.26x = 287,770.68 × 79,686.95
  4. Step 4: Simplify right side
    191,929.26x = 22,931,566,349.77
  5. Step 5: Solve for x
    x = 22,931,566,349.77/191,929.26
  6. Step 6: Final answer
    x = 119,479.26

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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.