Home / 143,942.04-198,720.32-101,053.16

Finding the Fourth Proportional to 143,942.04, 198,720.32 and 101,053.16

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Solution

The fourth proportional to 143,942.04, 198,720.32 and 101,053.16 is: 139,509.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,942.04 : 198,720.32 = 101,053.16 : x
  2. Step 2: Convert to fraction form
    143,942.04/198,720.32 = 101,053.16/x
  3. Step 3: Cross multiply
    143,942.04x = 198,720.32 × 101,053.16
  4. Step 4: Simplify right side
    143,942.04x = 20,081,316,292.21
  5. Step 5: Solve for x
    x = 20,081,316,292.21/143,942.04
  6. Step 6: Final answer
    x = 139,509.74

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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.