Home / 145,049.13-217,201.91-85,927.23

Finding the Fourth Proportional to 145,049.13, 217,201.91 and 85,927.23

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Solution

The fourth proportional to 145,049.13, 217,201.91 and 85,927.23 is: 128,670.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,049.13 : 217,201.91 = 85,927.23 : x
  2. Step 2: Convert to fraction form
    145,049.13/217,201.91 = 85,927.23/x
  3. Step 3: Cross multiply
    145,049.13x = 217,201.91 × 85,927.23
  4. Step 4: Simplify right side
    145,049.13x = 18,663,558,047.37
  5. Step 5: Solve for x
    x = 18,663,558,047.37/145,049.13
  6. Step 6: Final answer
    x = 128,670.60

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1.5x scale

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.