Home / 143,457.30-198,009.09-101,034.90

Finding the Fourth Proportional to 143,457.30, 198,009.09 and 101,034.90

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Solution

The fourth proportional to 143,457.30, 198,009.09 and 101,034.90 is: 139,454.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,457.30 : 198,009.09 = 101,034.90 : x
  2. Step 2: Convert to fraction form
    143,457.30/198,009.09 = 101,034.90/x
  3. Step 3: Cross multiply
    143,457.30x = 198,009.09 × 101,034.90
  4. Step 4: Simplify right side
    143,457.30x = 20,005,828,607.24
  5. Step 5: Solve for x
    x = 20,005,828,607.24/143,457.30
  6. Step 6: Final answer
    x = 139,454.94

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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.