Home / 126,455.76-189,539.64-42,196.14

Finding the Fourth Proportional to 126,455.76, 189,539.64 and 42,196.14

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Solution

The fourth proportional to 126,455.76, 189,539.64 and 42,196.14 is: 63,246.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,455.76 : 189,539.64 = 42,196.14 : x
  2. Step 2: Convert to fraction form
    126,455.76/189,539.64 = 42,196.14/x
  3. Step 3: Cross multiply
    126,455.76x = 189,539.64 × 42,196.14
  4. Step 4: Simplify right side
    126,455.76x = 7,997,841,184.99
  5. Step 5: Solve for x
    x = 7,997,841,184.99/126,455.76
  6. Step 6: Final answer
    x = 63,246.16

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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.