Home / 109,786.08-151,506-59,485.20

Finding the Fourth Proportional to 109,786.08, 151,506 and 59,485.20

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Solution

The fourth proportional to 109,786.08, 151,506 and 59,485.20 is: 82,090.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,786.08 : 151,506 = 59,485.20 : x
  2. Step 2: Convert to fraction form
    109,786.08/151,506 = 59,485.20/x
  3. Step 3: Cross multiply
    109,786.08x = 151,506 × 59,485.20
  4. Step 4: Simplify right side
    109,786.08x = 9,012,364,711.20
  5. Step 5: Solve for x
    x = 9,012,364,711.20/109,786.08
  6. Step 6: Final answer
    x = 82,090.23

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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.