Home / 139,649.06-209,506.40-46,154.81

Finding the Fourth Proportional to 139,649.06, 209,506.40 and 46,154.81

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Solution

The fourth proportional to 139,649.06, 209,506.40 and 46,154.81 is: 69,243.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,649.06 : 209,506.40 = 46,154.81 : x
  2. Step 2: Convert to fraction form
    139,649.06/209,506.40 = 46,154.81/x
  3. Step 3: Cross multiply
    139,649.06x = 209,506.40 × 46,154.81
  4. Step 4: Simplify right side
    139,649.06x = 9,669,728,551.86
  5. Step 5: Solve for x
    x = 9,669,728,551.86/139,649.06
  6. Step 6: Final answer
    x = 69,243.06

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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.