Home / 146,411.80-219,617.70-128,332.60

Finding the Fourth Proportional to 146,411.80, 219,617.70 and 128,332.60

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Solution

The fourth proportional to 146,411.80, 219,617.70 and 128,332.60 is: 192,498.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,411.80 : 219,617.70 = 128,332.60 : x
  2. Step 2: Convert to fraction form
    146,411.80/219,617.70 = 128,332.60/x
  3. Step 3: Cross multiply
    146,411.80x = 219,617.70 × 128,332.60
  4. Step 4: Simplify right side
    146,411.80x = 28,184,110,447.02
  5. Step 5: Solve for x
    x = 28,184,110,447.02/146,411.80
  6. Step 6: Final answer
    x = 192,498.90

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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.