Home / 155,317.87-232,635.30-128,358.31

Finding the Fourth Proportional to 155,317.87, 232,635.30 and 128,358.31

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Solution

The fourth proportional to 155,317.87, 232,635.30 and 128,358.31 is: 192,255.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,317.87 : 232,635.30 = 128,358.31 : x
  2. Step 2: Convert to fraction form
    155,317.87/232,635.30 = 128,358.31/x
  3. Step 3: Cross multiply
    155,317.87x = 232,635.30 × 128,358.31
  4. Step 4: Simplify right side
    155,317.87x = 29,860,673,954.34
  5. Step 5: Solve for x
    x = 29,860,673,954.34/155,317.87
  6. Step 6: Final answer
    x = 192,255.24

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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.