Home / 127,426.92-191,020.93-43,128.10

Finding the Fourth Proportional to 127,426.92, 191,020.93 and 43,128.10

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Solution

The fourth proportional to 127,426.92, 191,020.93 and 43,128.10 is: 64,651.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,426.92 : 191,020.93 = 43,128.10 : x
  2. Step 2: Convert to fraction form
    127,426.92/191,020.93 = 43,128.10/x
  3. Step 3: Cross multiply
    127,426.92x = 191,020.93 × 43,128.10
  4. Step 4: Simplify right side
    127,426.92x = 8,238,369,070.19
  5. Step 5: Solve for x
    x = 8,238,369,070.19/127,426.92
  6. Step 6: Final answer
    x = 64,651.72

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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.