Home / 119,210.08-164,655.44-89,128.98

Finding the Fourth Proportional to 119,210.08, 164,655.44 and 89,128.98

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Solution

The fourth proportional to 119,210.08, 164,655.44 and 89,128.98 is: 123,106.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,210.08 : 164,655.44 = 89,128.98 : x
  2. Step 2: Convert to fraction form
    119,210.08/164,655.44 = 89,128.98/x
  3. Step 3: Cross multiply
    119,210.08x = 164,655.44 × 89,128.98
  4. Step 4: Simplify right side
    119,210.08x = 14,675,571,418.65
  5. Step 5: Solve for x
    x = 14,675,571,418.65/119,210.08
  6. Step 6: Final answer
    x = 123,106.80

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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.