Home / 118,758.08-163,887.30-71,011.42

Finding the Fourth Proportional to 118,758.08, 163,887.30 and 71,011.42

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Solution

The fourth proportional to 118,758.08, 163,887.30 and 71,011.42 is: 97,996.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,758.08 : 163,887.30 = 71,011.42 : x
  2. Step 2: Convert to fraction form
    118,758.08/163,887.30 = 71,011.42/x
  3. Step 3: Cross multiply
    118,758.08x = 163,887.30 × 71,011.42
  4. Step 4: Simplify right side
    118,758.08x = 11,637,870,520.35
  5. Step 5: Solve for x
    x = 11,637,870,520.35/118,758.08
  6. Step 6: Final answer
    x = 97,996.46

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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.