Home / 155,756.12-233,478.89-65,821.51

Finding the Fourth Proportional to 155,756.12, 233,478.89 and 65,821.51

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Solution

The fourth proportional to 155,756.12, 233,478.89 and 65,821.51 is: 98,666.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,756.12 : 233,478.89 = 65,821.51 : x
  2. Step 2: Convert to fraction form
    155,756.12/233,478.89 = 65,821.51/x
  3. Step 3: Cross multiply
    155,756.12x = 233,478.89 × 65,821.51
  4. Step 4: Simplify right side
    155,756.12x = 15,367,933,092.92
  5. Step 5: Solve for x
    x = 15,367,933,092.92/155,756.12
  6. Step 6: Final answer
    x = 98,666.64

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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.