Home / 146,904.20-220,623.60-128,533.40

Finding the Fourth Proportional to 146,904.20, 220,623.60 and 128,533.40

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Solution

The fourth proportional to 146,904.20, 220,623.60 and 128,533.40 is: 193,033.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,904.20 : 220,623.60 = 128,533.40 : x
  2. Step 2: Convert to fraction form
    146,904.20/220,623.60 = 128,533.40/x
  3. Step 3: Cross multiply
    146,904.20x = 220,623.60 × 128,533.40
  4. Step 4: Simplify right side
    146,904.20x = 28,357,501,428.24
  5. Step 5: Solve for x
    x = 28,357,501,428.24/146,904.20
  6. Step 6: Final answer
    x = 193,033.97

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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.