Home / 103,698.02-143,064.16-60,663.80

Finding the Fourth Proportional to 103,698.02, 143,064.16 and 60,663.80

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Solution

The fourth proportional to 103,698.02, 143,064.16 and 60,663.80 is: 83,693.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,698.02 : 143,064.16 = 60,663.80 : x
  2. Step 2: Convert to fraction form
    103,698.02/143,064.16 = 60,663.80/x
  3. Step 3: Cross multiply
    103,698.02x = 143,064.16 × 60,663.80
  4. Step 4: Simplify right side
    103,698.02x = 8,678,815,589.41
  5. Step 5: Solve for x
    x = 8,678,815,589.41/103,698.02
  6. Step 6: Final answer
    x = 83,693.17

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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.