Home / 142,409.80-213,557.10-48,867.40

Finding the Fourth Proportional to 142,409.80, 213,557.10 and 48,867.40

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Solution

The fourth proportional to 142,409.80, 213,557.10 and 48,867.40 is: 73,281.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,409.80 : 213,557.10 = 48,867.40 : x
  2. Step 2: Convert to fraction form
    142,409.80/213,557.10 = 48,867.40/x
  3. Step 3: Cross multiply
    142,409.80x = 213,557.10 × 48,867.40
  4. Step 4: Simplify right side
    142,409.80x = 10,435,980,228.54
  5. Step 5: Solve for x
    x = 10,435,980,228.54/142,409.80
  6. Step 6: Final answer
    x = 73,281.33

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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.