Home / 86,973.99-119,124.78-81,867.34

Finding the Fourth Proportional to 86,973.99, 119,124.78 and 81,867.34

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Solution

The fourth proportional to 86,973.99, 119,124.78 and 81,867.34 is: 112,130.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,973.99 : 119,124.78 = 81,867.34 : x
  2. Step 2: Convert to fraction form
    86,973.99/119,124.78 = 81,867.34/x
  3. Step 3: Cross multiply
    86,973.99x = 119,124.78 × 81,867.34
  4. Step 4: Simplify right side
    86,973.99x = 9,752,428,866.69
  5. Step 5: Solve for x
    x = 9,752,428,866.69/86,973.99
  6. Step 6: Final answer
    x = 112,130.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.