Home / 146,903.20-220,622.10-128,532.40

Finding the Fourth Proportional to 146,903.20, 220,622.10 and 128,532.40

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Solution

The fourth proportional to 146,903.20, 220,622.10 and 128,532.40 is: 193,032.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,903.20 : 220,622.10 = 128,532.40 : x
  2. Step 2: Convert to fraction form
    146,903.20/220,622.10 = 128,532.40/x
  3. Step 3: Cross multiply
    146,903.20x = 220,622.10 × 128,532.40
  4. Step 4: Simplify right side
    146,903.20x = 28,357,088,006.04
  5. Step 5: Solve for x
    x = 28,357,088,006.04/146,903.20
  6. Step 6: Final answer
    x = 193,032.47

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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.