Home / 86,513.23-119,333.14-76,278.07

Finding the Fourth Proportional to 86,513.23, 119,333.14 and 76,278.07

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Solution

The fourth proportional to 86,513.23, 119,333.14 and 76,278.07 is: 105,215.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,513.23 : 119,333.14 = 76,278.07 : x
  2. Step 2: Convert to fraction form
    86,513.23/119,333.14 = 76,278.07/x
  3. Step 3: Cross multiply
    86,513.23x = 119,333.14 × 76,278.07
  4. Step 4: Simplify right side
    86,513.23x = 9,102,501,606.24
  5. Step 5: Solve for x
    x = 9,102,501,606.24/86,513.23
  6. Step 6: Final answer
    x = 105,215.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.