Home / 118,429.58-163,425.84-64,703.90

Finding the Fourth Proportional to 118,429.58, 163,425.84 and 64,703.90

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Solution

The fourth proportional to 118,429.58, 163,425.84 and 64,703.90 is: 89,287.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,429.58 : 163,425.84 = 64,703.90 : x
  2. Step 2: Convert to fraction form
    118,429.58/163,425.84 = 64,703.90/x
  3. Step 3: Cross multiply
    118,429.58x = 163,425.84 × 64,703.90
  4. Step 4: Simplify right side
    118,429.58x = 10,574,288,391.65
  5. Step 5: Solve for x
    x = 10,574,288,391.65/118,429.58
  6. Step 6: Final answer
    x = 89,287.57

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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.