Home / 127,429.18-191,024.30-43,130.34

Finding the Fourth Proportional to 127,429.18, 191,024.30 and 43,130.34

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Solution

The fourth proportional to 127,429.18, 191,024.30 and 43,130.34 is: 64,655.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,429.18 : 191,024.30 = 43,130.34 : x
  2. Step 2: Convert to fraction form
    127,429.18/191,024.30 = 43,130.34/x
  3. Step 3: Cross multiply
    127,429.18x = 191,024.30 × 43,130.34
  4. Step 4: Simplify right side
    127,429.18x = 8,238,943,115.09
  5. Step 5: Solve for x
    x = 8,238,943,115.09/127,429.18
  6. Step 6: Final answer
    x = 64,655.08

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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.