Home / 139,869.59-193,017.33-76,206.02

Finding the Fourth Proportional to 139,869.59, 193,017.33 and 76,206.02

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Solution

The fourth proportional to 139,869.59, 193,017.33 and 76,206.02 is: 105,162.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,869.59 : 193,017.33 = 76,206.02 : x
  2. Step 2: Convert to fraction form
    139,869.59/193,017.33 = 76,206.02/x
  3. Step 3: Cross multiply
    139,869.59x = 193,017.33 × 76,206.02
  4. Step 4: Simplify right side
    139,869.59x = 14,709,081,545.24
  5. Step 5: Solve for x
    x = 14,709,081,545.24/139,869.59
  6. Step 6: Final answer
    x = 105,162.83

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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.