Home / 191,411.23-286,939.18-84,738.28

Finding the Fourth Proportional to 191,411.23, 286,939.18 and 84,738.28

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Solution

The fourth proportional to 191,411.23, 286,939.18 and 84,738.28 is: 127,028.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,411.23 : 286,939.18 = 84,738.28 : x
  2. Step 2: Convert to fraction form
    191,411.23/286,939.18 = 84,738.28/x
  3. Step 3: Cross multiply
    191,411.23x = 286,939.18 × 84,738.28
  4. Step 4: Simplify right side
    191,411.23x = 24,314,732,577.81
  5. Step 5: Solve for x
    x = 24,314,732,577.81/191,411.23
  6. Step 6: Final answer
    x = 127,028.77

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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.