Home / 155,965.10-234,028.65-72,859.10

Finding the Fourth Proportional to 155,965.10, 234,028.65 and 72,859.10

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Solution

The fourth proportional to 155,965.10, 234,028.65 and 72,859.10 is: 109,326.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,965.10 : 234,028.65 = 72,859.10 : x
  2. Step 2: Convert to fraction form
    155,965.10/234,028.65 = 72,859.10/x
  3. Step 3: Cross multiply
    155,965.10x = 234,028.65 × 72,859.10
  4. Step 4: Simplify right side
    155,965.10x = 17,051,116,813.22
  5. Step 5: Solve for x
    x = 17,051,116,813.22/155,965.10
  6. Step 6: Final answer
    x = 109,326.49

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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.