Home / 137,030.50-205,673.86-69,610.78

Finding the Fourth Proportional to 137,030.50, 205,673.86 and 69,610.78

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Solution

The fourth proportional to 137,030.50, 205,673.86 and 69,610.78 is: 104,481.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,030.50 : 205,673.86 = 69,610.78 : x
  2. Step 2: Convert to fraction form
    137,030.50/205,673.86 = 69,610.78/x
  3. Step 3: Cross multiply
    137,030.50x = 205,673.86 × 69,610.78
  4. Step 4: Simplify right side
    137,030.50x = 14,317,117,820.21
  5. Step 5: Solve for x
    x = 14,317,117,820.21/137,030.50
  6. Step 6: Final answer
    x = 104,481.25

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1.5x scale

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.