Home / 155,142.07-232,594.72-80,214.39

Finding the Fourth Proportional to 155,142.07, 232,594.72 and 80,214.39

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Solution

The fourth proportional to 155,142.07, 232,594.72 and 80,214.39 is: 120,260.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,142.07 : 232,594.72 = 80,214.39 : x
  2. Step 2: Convert to fraction form
    155,142.07/232,594.72 = 80,214.39/x
  3. Step 3: Cross multiply
    155,142.07x = 232,594.72 × 80,214.39
  4. Step 4: Simplify right side
    155,142.07x = 18,657,443,582.02
  5. Step 5: Solve for x
    x = 18,657,443,582.02/155,142.07
  6. Step 6: Final answer
    x = 120,260.38

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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.