Home / 109,420.61-151,000.43-59,119.61

Finding the Fourth Proportional to 109,420.61, 151,000.43 and 59,119.61

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Solution

The fourth proportional to 109,420.61, 151,000.43 and 59,119.61 is: 81,585.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,420.61 : 151,000.43 = 59,119.61 : x
  2. Step 2: Convert to fraction form
    109,420.61/151,000.43 = 59,119.61/x
  3. Step 3: Cross multiply
    109,420.61x = 151,000.43 × 59,119.61
  4. Step 4: Simplify right side
    109,420.61x = 8,927,085,480.83
  5. Step 5: Solve for x
    x = 8,927,085,480.83/109,420.61
  6. Step 6: Final answer
    x = 81,585.05

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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.