Home / 245,155.76-338,312.94-137,723.53

Finding the Fourth Proportional to 245,155.76, 338,312.94 and 137,723.53

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Solution

The fourth proportional to 245,155.76, 338,312.94 and 137,723.53 is: 190,057.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,155.76 : 338,312.94 = 137,723.53 : x
  2. Step 2: Convert to fraction form
    245,155.76/338,312.94 = 137,723.53/x
  3. Step 3: Cross multiply
    245,155.76x = 338,312.94 × 137,723.53
  4. Step 4: Simplify right side
    245,155.76x = 46,593,652,341.48
  5. Step 5: Solve for x
    x = 46,593,652,341.48/245,155.76
  6. Step 6: Final answer
    x = 190,057.34

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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.