Home / 105,328.60-158,273.70-57,981.40

Finding the Fourth Proportional to 105,328.60, 158,273.70 and 57,981.40

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Solution

The fourth proportional to 105,328.60, 158,273.70 and 57,981.40 is: 87,126.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,328.60 : 158,273.70 = 57,981.40 : x
  2. Step 2: Convert to fraction form
    105,328.60/158,273.70 = 57,981.40/x
  3. Step 3: Cross multiply
    105,328.60x = 158,273.70 × 57,981.40
  4. Step 4: Simplify right side
    105,328.60x = 9,176,930,709.18
  5. Step 5: Solve for x
    x = 9,176,930,709.18/105,328.60
  6. Step 6: Final answer
    x = 87,126.68

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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.