Home / 103,005.60-154,508.40-47,709.60

Finding the Fourth Proportional to 103,005.60, 154,508.40 and 47,709.60

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Solution

The fourth proportional to 103,005.60, 154,508.40 and 47,709.60 is: 71,564.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,005.60 : 154,508.40 = 47,709.60 : x
  2. Step 2: Convert to fraction form
    103,005.60/154,508.40 = 47,709.60/x
  3. Step 3: Cross multiply
    103,005.60x = 154,508.40 × 47,709.60
  4. Step 4: Simplify right side
    103,005.60x = 7,371,533,960.64
  5. Step 5: Solve for x
    x = 7,371,533,960.64/103,005.60
  6. Step 6: Final answer
    x = 71,564.40

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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.