Home / 115,501.85-159,387.78-64,514.34

Finding the Fourth Proportional to 115,501.85, 159,387.78 and 64,514.34

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Solution

The fourth proportional to 115,501.85, 159,387.78 and 64,514.34 is: 89,027.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,501.85 : 159,387.78 = 64,514.34 : x
  2. Step 2: Convert to fraction form
    115,501.85/159,387.78 = 64,514.34/x
  3. Step 3: Cross multiply
    115,501.85x = 159,387.78 × 64,514.34
  4. Step 4: Simplify right side
    115,501.85x = 10,282,797,430.77
  5. Step 5: Solve for x
    x = 10,282,797,430.77/115,501.85
  6. Step 6: Final answer
    x = 89,027.13

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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.