Home / 113,126.55-156,079.51-65,362.47

Finding the Fourth Proportional to 113,126.55, 156,079.51 and 65,362.47

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Solution

The fourth proportional to 113,126.55, 156,079.51 and 65,362.47 is: 90,179.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,126.55 : 156,079.51 = 65,362.47 : x
  2. Step 2: Convert to fraction form
    113,126.55/156,079.51 = 65,362.47/x
  3. Step 3: Cross multiply
    113,126.55x = 156,079.51 × 65,362.47
  4. Step 4: Simplify right side
    113,126.55x = 10,201,742,289.99
  5. Step 5: Solve for x
    x = 10,201,742,289.99/113,126.55
  6. Step 6: Final answer
    x = 90,179.91

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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.