Home / 638,123.02-957,187.77-164,775.76

Finding the Fourth Proportional to 638,123.02, 957,187.77 and 164,775.76

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Solution

The fourth proportional to 638,123.02, 957,187.77 and 164,775.76 is: 247,164.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,123.02 : 957,187.77 = 164,775.76 : x
  2. Step 2: Convert to fraction form
    638,123.02/957,187.77 = 164,775.76/x
  3. Step 3: Cross multiply
    638,123.02x = 957,187.77 × 164,775.76
  4. Step 4: Simplify right side
    638,123.02x = 157,721,342,264.46
  5. Step 5: Solve for x
    x = 157,721,342,264.46/638,123.02
  6. Step 6: Final answer
    x = 247,164.48

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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.