Home / 144,670.03-199,612.35-87,318.65

Finding the Fourth Proportional to 144,670.03, 199,612.35 and 87,318.65

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Solution

The fourth proportional to 144,670.03, 199,612.35 and 87,318.65 is: 120,480.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,670.03 : 199,612.35 = 87,318.65 : x
  2. Step 2: Convert to fraction form
    144,670.03/199,612.35 = 87,318.65/x
  3. Step 3: Cross multiply
    144,670.03x = 199,612.35 × 87,318.65
  4. Step 4: Simplify right side
    144,670.03x = 17,429,881,424.36
  5. Step 5: Solve for x
    x = 17,429,881,424.36/144,670.03
  6. Step 6: Final answer
    x = 120,480.25

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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.