Home / 86,895.34-119,853.66-79,748.32

Finding the Fourth Proportional to 86,895.34, 119,853.66 and 79,748.32

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Solution

The fourth proportional to 86,895.34, 119,853.66 and 79,748.32 is: 109,995.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,895.34 : 119,853.66 = 79,748.32 : x
  2. Step 2: Convert to fraction form
    86,895.34/119,853.66 = 79,748.32/x
  3. Step 3: Cross multiply
    86,895.34x = 119,853.66 × 79,748.32
  4. Step 4: Simplify right side
    86,895.34x = 9,558,128,030.85
  5. Step 5: Solve for x
    x = 9,558,128,030.85/86,895.34
  6. Step 6: Final answer
    x = 109,995.86

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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.