Home / 104,289.76-144,038.64-70,697.44

Finding the Fourth Proportional to 104,289.76, 144,038.64 and 70,697.44

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Solution

The fourth proportional to 104,289.76, 144,038.64 and 70,697.44 is: 97,642.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,289.76 : 144,038.64 = 70,697.44 : x
  2. Step 2: Convert to fraction form
    104,289.76/144,038.64 = 70,697.44/x
  3. Step 3: Cross multiply
    104,289.76x = 144,038.64 × 70,697.44
  4. Step 4: Simplify right side
    104,289.76x = 10,183,163,109.08
  5. Step 5: Solve for x
    x = 10,183,163,109.08/104,289.76
  6. Step 6: Final answer
    x = 97,642.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.