Home / 118,782.40-163,919.75-65,069.35

Finding the Fourth Proportional to 118,782.40, 163,919.75 and 65,069.35

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Solution

The fourth proportional to 118,782.40, 163,919.75 and 65,069.35 is: 89,795.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,782.40 : 163,919.75 = 65,069.35 : x
  2. Step 2: Convert to fraction form
    118,782.40/163,919.75 = 65,069.35/x
  3. Step 3: Cross multiply
    118,782.40x = 163,919.75 × 65,069.35
  4. Step 4: Simplify right side
    118,782.40x = 10,666,151,747.34
  5. Step 5: Solve for x
    x = 10,666,151,747.34/118,782.40
  6. Step 6: Final answer
    x = 89,795.73

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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.