Home / 115,890.40-173,854.80-49,362.40

Finding the Fourth Proportional to 115,890.40, 173,854.80 and 49,362.40

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Solution

The fourth proportional to 115,890.40, 173,854.80 and 49,362.40 is: 74,051.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,890.40 : 173,854.80 = 49,362.40 : x
  2. Step 2: Convert to fraction form
    115,890.40/173,854.80 = 49,362.40/x
  3. Step 3: Cross multiply
    115,890.40x = 173,854.80 × 49,362.40
  4. Step 4: Simplify right side
    115,890.40x = 8,581,890,179.52
  5. Step 5: Solve for x
    x = 8,581,890,179.52/115,890.40
  6. Step 6: Final answer
    x = 74,051.78

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1.5x scale

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.