Home / 109,871.02-151,611.51-87,264.73

Finding the Fourth Proportional to 109,871.02, 151,611.51 and 87,264.73

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Solution

The fourth proportional to 109,871.02, 151,611.51 and 87,264.73 is: 120,416.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,871.02 : 151,611.51 = 87,264.73 : x
  2. Step 2: Convert to fraction form
    109,871.02/151,611.51 = 87,264.73/x
  3. Step 3: Cross multiply
    109,871.02x = 151,611.51 × 87,264.73
  4. Step 4: Simplify right side
    109,871.02x = 13,230,337,485.04
  5. Step 5: Solve for x
    x = 13,230,337,485.04/109,871.02
  6. Step 6: Final answer
    x = 120,416.99

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1.5x scale

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.