Home / 155,317.43-232,634.65-128,357.87

Finding the Fourth Proportional to 155,317.43, 232,634.65 and 128,357.87

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Solution

The fourth proportional to 155,317.43, 232,634.65 and 128,357.87 is: 192,254.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,317.43 : 232,634.65 = 128,357.87 : x
  2. Step 2: Convert to fraction form
    155,317.43/232,634.65 = 128,357.87/x
  3. Step 3: Cross multiply
    155,317.43x = 232,634.65 × 128,357.87
  4. Step 4: Simplify right side
    155,317.43x = 29,860,488,227.37
  5. Step 5: Solve for x
    x = 29,860,488,227.37/155,317.43
  6. Step 6: Final answer
    x = 192,254.59

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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.