Home / 191,109.26-286,649.24-57,990.21

Finding the Fourth Proportional to 191,109.26, 286,649.24 and 57,990.21

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Solution

The fourth proportional to 191,109.26, 286,649.24 and 57,990.21 is: 86,980.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,109.26 : 286,649.24 = 57,990.21 : x
  2. Step 2: Convert to fraction form
    191,109.26/286,649.24 = 57,990.21/x
  3. Step 3: Cross multiply
    191,109.26x = 286,649.24 × 57,990.21
  4. Step 4: Simplify right side
    191,109.26x = 16,622,849,333.99
  5. Step 5: Solve for x
    x = 16,622,849,333.99/191,109.26
  6. Step 6: Final answer
    x = 86,980.87

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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.