Home / 118,472.16-177,739.35-42,578.36

Finding the Fourth Proportional to 118,472.16, 177,739.35 and 42,578.36

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Solution

The fourth proportional to 118,472.16, 177,739.35 and 42,578.36 is: 63,878.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,472.16 : 177,739.35 = 42,578.36 : x
  2. Step 2: Convert to fraction form
    118,472.16/177,739.35 = 42,578.36/x
  3. Step 3: Cross multiply
    118,472.16x = 177,739.35 × 42,578.36
  4. Step 4: Simplify right side
    118,472.16x = 7,567,849,221.60
  5. Step 5: Solve for x
    x = 7,567,849,221.60/118,472.16
  6. Step 6: Final answer
    x = 63,878.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.