Home / 143,570.08-215,118.16-83,429.74

Finding the Fourth Proportional to 143,570.08, 215,118.16 and 83,429.74

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Solution

The fourth proportional to 143,570.08, 215,118.16 and 83,429.74 is: 125,006.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,570.08 : 215,118.16 = 83,429.74 : x
  2. Step 2: Convert to fraction form
    143,570.08/215,118.16 = 83,429.74/x
  3. Step 3: Cross multiply
    143,570.08x = 215,118.16 × 83,429.74
  4. Step 4: Simplify right side
    143,570.08x = 17,947,252,158.08
  5. Step 5: Solve for x
    x = 17,947,252,158.08/143,570.08
  6. Step 6: Final answer
    x = 125,006.91

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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.