Home / 139,918.02-209,938.86-73,342.23

Finding the Fourth Proportional to 139,918.02, 209,938.86 and 73,342.23

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Solution

The fourth proportional to 139,918.02, 209,938.86 and 73,342.23 is: 110,045.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,918.02 : 209,938.86 = 73,342.23 : x
  2. Step 2: Convert to fraction form
    139,918.02/209,938.86 = 73,342.23/x
  3. Step 3: Cross multiply
    139,918.02x = 209,938.86 × 73,342.23
  4. Step 4: Simplify right side
    139,918.02x = 15,397,384,156.06
  5. Step 5: Solve for x
    x = 15,397,384,156.06/139,918.02
  6. Step 6: Final answer
    x = 110,045.76

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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.