Home / 123,823.58-170,875.05-67,235.36

Finding the Fourth Proportional to 123,823.58, 170,875.05 and 67,235.36

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Solution

The fourth proportional to 123,823.58, 170,875.05 and 67,235.36 is: 92,783.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,823.58 : 170,875.05 = 67,235.36 : x
  2. Step 2: Convert to fraction form
    123,823.58/170,875.05 = 67,235.36/x
  3. Step 3: Cross multiply
    123,823.58x = 170,875.05 × 67,235.36
  4. Step 4: Simplify right side
    123,823.58x = 11,488,845,501.77
  5. Step 5: Solve for x
    x = 11,488,845,501.77/123,823.58
  6. Step 6: Final answer
    x = 92,783.99

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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.