Home / 109,721.02-151,414.12-59,420.02

Finding the Fourth Proportional to 109,721.02, 151,414.12 and 59,420.02

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Solution

The fourth proportional to 109,721.02, 151,414.12 and 59,420.02 is: 81,999.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,721.02 : 151,414.12 = 59,420.02 : x
  2. Step 2: Convert to fraction form
    109,721.02/151,414.12 = 59,420.02/x
  3. Step 3: Cross multiply
    109,721.02x = 151,414.12 × 59,420.02
  4. Step 4: Simplify right side
    109,721.02x = 8,997,030,038.68
  5. Step 5: Solve for x
    x = 8,997,030,038.68/109,721.02
  6. Step 6: Final answer
    x = 81,999.15

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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.