Home / 118,715.04-163,821.69-64,999.08

Finding the Fourth Proportional to 118,715.04, 163,821.69 and 64,999.08

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Solution

The fourth proportional to 118,715.04, 163,821.69 and 64,999.08 is: 89,695.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,715.04 : 163,821.69 = 64,999.08 : x
  2. Step 2: Convert to fraction form
    118,715.04/163,821.69 = 64,999.08/x
  3. Step 3: Cross multiply
    118,715.04x = 163,821.69 × 64,999.08
  4. Step 4: Simplify right side
    118,715.04x = 10,648,259,134.05
  5. Step 5: Solve for x
    x = 10,648,259,134.05/118,715.04
  6. Step 6: Final answer
    x = 89,695.96

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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.