Home / 144,534.36-216,713.74-72,403.38

Finding the Fourth Proportional to 144,534.36, 216,713.74 and 72,403.38

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Solution

The fourth proportional to 144,534.36, 216,713.74 and 72,403.38 is: 108,561.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,534.36 : 216,713.74 = 72,403.38 : x
  2. Step 2: Convert to fraction form
    144,534.36/216,713.74 = 72,403.38/x
  3. Step 3: Cross multiply
    144,534.36x = 216,713.74 × 72,403.38
  4. Step 4: Simplify right side
    144,534.36x = 15,690,807,801.77
  5. Step 5: Solve for x
    x = 15,690,807,801.77/144,534.36
  6. Step 6: Final answer
    x = 108,561.09

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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.