Home / 109,206.83-163,849.67-38,139.93

Finding the Fourth Proportional to 109,206.83, 163,849.67 and 38,139.93

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Solution

The fourth proportional to 109,206.83, 163,849.67 and 38,139.93 is: 57,223.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,206.83 : 163,849.67 = 38,139.93 : x
  2. Step 2: Convert to fraction form
    109,206.83/163,849.67 = 38,139.93/x
  3. Step 3: Cross multiply
    109,206.83x = 163,849.67 × 38,139.93
  4. Step 4: Simplify right side
    109,206.83x = 6,249,214,896.65
  5. Step 5: Solve for x
    x = 6,249,214,896.65/109,206.83
  6. Step 6: Final answer
    x = 57,223.66

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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.