Home / 155,880.04-233,896.86-72,779.88

Finding the Fourth Proportional to 155,880.04, 233,896.86 and 72,779.88

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Solution

The fourth proportional to 155,880.04, 233,896.86 and 72,779.88 is: 109,205.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,880.04 : 233,896.86 = 72,779.88 : x
  2. Step 2: Convert to fraction form
    155,880.04/233,896.86 = 72,779.88/x
  3. Step 3: Cross multiply
    155,880.04x = 233,896.86 × 72,779.88
  4. Step 4: Simplify right side
    155,880.04x = 17,022,985,403.18
  5. Step 5: Solve for x
    x = 17,022,985,403.18/155,880.04
  6. Step 6: Final answer
    x = 109,205.68

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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.