Home / 143,636.32-198,185.04-87,035.68

Finding the Fourth Proportional to 143,636.32, 198,185.04 and 87,035.68

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Solution

The fourth proportional to 143,636.32, 198,185.04 and 87,035.68 is: 120,089.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,636.32 : 198,185.04 = 87,035.68 : x
  2. Step 2: Convert to fraction form
    143,636.32/198,185.04 = 87,035.68/x
  3. Step 3: Cross multiply
    143,636.32x = 198,185.04 × 87,035.68
  4. Step 4: Simplify right side
    143,636.32x = 17,249,169,722.23
  5. Step 5: Solve for x
    x = 17,249,169,722.23/143,636.32
  6. Step 6: Final answer
    x = 120,089.19

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1.5x scale

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.