Home / 121,572.02-167,846.44-83,395.52

Finding the Fourth Proportional to 121,572.02, 167,846.44 and 83,395.52

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Solution

The fourth proportional to 121,572.02, 167,846.44 and 83,395.52 is: 115,138.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,572.02 : 167,846.44 = 83,395.52 : x
  2. Step 2: Convert to fraction form
    121,572.02/167,846.44 = 83,395.52/x
  3. Step 3: Cross multiply
    121,572.02x = 167,846.44 × 83,395.52
  4. Step 4: Simplify right side
    121,572.02x = 13,997,641,143.95
  5. Step 5: Solve for x
    x = 13,997,641,143.95/121,572.02
  6. Step 6: Final answer
    x = 115,138.67

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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.