Home / 98,941.02-148,143.69-72,445.02

Finding the Fourth Proportional to 98,941.02, 148,143.69 and 72,445.02

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Solution

The fourth proportional to 98,941.02, 148,143.69 and 72,445.02 is: 108,471.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,941.02 : 148,143.69 = 72,445.02 : x
  2. Step 2: Convert to fraction form
    98,941.02/148,143.69 = 72,445.02/x
  3. Step 3: Cross multiply
    98,941.02x = 148,143.69 × 72,445.02
  4. Step 4: Simplify right side
    98,941.02x = 10,732,272,584.92
  5. Step 5: Solve for x
    x = 10,732,272,584.92/98,941.02
  6. Step 6: Final answer
    x = 108,471.42

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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.