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Finding the Fourth Proportional to 119,383.74, 178,985.70 and 102,937.50

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Solution

The fourth proportional to 119,383.74, 178,985.70 and 102,937.50 is: 154,328.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,383.74 : 178,985.70 = 102,937.50 : x
  2. Step 2: Convert to fraction form
    119,383.74/178,985.70 = 102,937.50/x
  3. Step 3: Cross multiply
    119,383.74x = 178,985.70 × 102,937.50
  4. Step 4: Simplify right side
    119,383.74x = 18,424,340,493.75
  5. Step 5: Solve for x
    x = 18,424,340,493.75/119,383.74
  6. Step 6: Final answer
    x = 154,328.73

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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.