Home / 119,808.91-165,355.86-72,088.57

Finding the Fourth Proportional to 119,808.91, 165,355.86 and 72,088.57

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Solution

The fourth proportional to 119,808.91, 165,355.86 and 72,088.57 is: 99,494.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,808.91 : 165,355.86 = 72,088.57 : x
  2. Step 2: Convert to fraction form
    119,808.91/165,355.86 = 72,088.57/x
  3. Step 3: Cross multiply
    119,808.91x = 165,355.86 × 72,088.57
  4. Step 4: Simplify right side
    119,808.91x = 11,920,267,488.52
  5. Step 5: Solve for x
    x = 11,920,267,488.52/119,808.91
  6. Step 6: Final answer
    x = 99,494.00

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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.