Home / 131,390.55-197,053.02-42,669.45

Finding the Fourth Proportional to 131,390.55, 197,053.02 and 42,669.45

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Solution

The fourth proportional to 131,390.55, 197,053.02 and 42,669.45 is: 63,993.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,390.55 : 197,053.02 = 42,669.45 : x
  2. Step 2: Convert to fraction form
    131,390.55/197,053.02 = 42,669.45/x
  3. Step 3: Cross multiply
    131,390.55x = 197,053.02 × 42,669.45
  4. Step 4: Simplify right side
    131,390.55x = 8,408,144,583.55
  5. Step 5: Solve for x
    x = 8,408,144,583.55/131,390.55
  6. Step 6: Final answer
    x = 63,993.52

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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.