Home / 148,653.47-205,141.92-80,670.45

Finding the Fourth Proportional to 148,653.47, 205,141.92 and 80,670.45

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Solution

The fourth proportional to 148,653.47, 205,141.92 and 80,670.45 is: 111,325.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,653.47 : 205,141.92 = 80,670.45 : x
  2. Step 2: Convert to fraction form
    148,653.47/205,141.92 = 80,670.45/x
  3. Step 3: Cross multiply
    148,653.47x = 205,141.92 × 80,670.45
  4. Step 4: Simplify right side
    148,653.47x = 16,548,890,533.50
  5. Step 5: Solve for x
    x = 16,548,890,533.50/148,653.47
  6. Step 6: Final answer
    x = 111,325.29

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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.