Home / 119,976.72-180,086.40-70,152

Finding the Fourth Proportional to 119,976.72, 180,086.40 and 70,152

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Solution

The fourth proportional to 119,976.72, 180,086.40 and 70,152 is: 105,298.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,976.72 : 180,086.40 = 70,152 : x
  2. Step 2: Convert to fraction form
    119,976.72/180,086.40 = 70,152/x
  3. Step 3: Cross multiply
    119,976.72x = 180,086.40 × 70,152
  4. Step 4: Simplify right side
    119,976.72x = 12,633,421,132.80
  5. Step 5: Solve for x
    x = 12,633,421,132.80/119,976.72
  6. Step 6: Final answer
    x = 105,298.94

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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.