Home / 139,831.13-209,750.34-34,648.58

Finding the Fourth Proportional to 139,831.13, 209,750.34 and 34,648.58

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Solution

The fourth proportional to 139,831.13, 209,750.34 and 34,648.58 is: 51,973.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,831.13 : 209,750.34 = 34,648.58 : x
  2. Step 2: Convert to fraction form
    139,831.13/209,750.34 = 34,648.58/x
  3. Step 3: Cross multiply
    139,831.13x = 209,750.34 × 34,648.58
  4. Step 4: Simplify right side
    139,831.13x = 7,267,551,435.52
  5. Step 5: Solve for x
    x = 7,267,551,435.52/139,831.13
  6. Step 6: Final answer
    x = 51,973.77

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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.