Home / 142,159.77-213,313.46-57,981.69

Finding the Fourth Proportional to 142,159.77, 213,313.46 and 57,981.69

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Solution

The fourth proportional to 142,159.77, 213,313.46 and 57,981.69 is: 87,002.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,159.77 : 213,313.46 = 57,981.69 : x
  2. Step 2: Convert to fraction form
    142,159.77/213,313.46 = 57,981.69/x
  3. Step 3: Cross multiply
    142,159.77x = 213,313.46 × 57,981.69
  4. Step 4: Simplify right side
    142,159.77x = 12,368,274,620.64
  5. Step 5: Solve for x
    x = 12,368,274,620.64/142,159.77
  6. Step 6: Final answer
    x = 87,002.64

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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.