Home / 109,455.24-151,047.08-61,724.02

Finding the Fourth Proportional to 109,455.24, 151,047.08 and 61,724.02

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Solution

The fourth proportional to 109,455.24, 151,047.08 and 61,724.02 is: 85,178.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,455.24 : 151,047.08 = 61,724.02 : x
  2. Step 2: Convert to fraction form
    109,455.24/151,047.08 = 61,724.02/x
  3. Step 3: Cross multiply
    109,455.24x = 151,047.08 × 61,724.02
  4. Step 4: Simplify right side
    109,455.24x = 9,323,232,986.86
  5. Step 5: Solve for x
    x = 9,323,232,986.86/109,455.24
  6. Step 6: Final answer
    x = 85,178.50

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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.