Home / 137,826.98-190,222.05-84,143.30

Finding the Fourth Proportional to 137,826.98, 190,222.05 and 84,143.30

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Solution

The fourth proportional to 137,826.98, 190,222.05 and 84,143.30 is: 116,130.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,826.98 : 190,222.05 = 84,143.30 : x
  2. Step 2: Convert to fraction form
    137,826.98/190,222.05 = 84,143.30/x
  3. Step 3: Cross multiply
    137,826.98x = 190,222.05 × 84,143.30
  4. Step 4: Simplify right side
    137,826.98x = 16,005,911,019.77
  5. Step 5: Solve for x
    x = 16,005,911,019.77/137,826.98
  6. Step 6: Final answer
    x = 116,130.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.