Home / 143,868.10-215,864.34-77,230.41

Finding the Fourth Proportional to 143,868.10, 215,864.34 and 77,230.41

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Solution

The fourth proportional to 143,868.10, 215,864.34 and 77,230.41 is: 115,879.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,868.10 : 215,864.34 = 77,230.41 : x
  2. Step 2: Convert to fraction form
    143,868.10/215,864.34 = 77,230.41/x
  3. Step 3: Cross multiply
    143,868.10x = 215,864.34 × 77,230.41
  4. Step 4: Simplify right side
    143,868.10x = 16,671,292,032.13
  5. Step 5: Solve for x
    x = 16,671,292,032.13/143,868.10
  6. Step 6: Final answer
    x = 115,879.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.