Home / 155,985.80-234,021.90-103,497.80

Finding the Fourth Proportional to 155,985.80, 234,021.90 and 103,497.80

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Solution

The fourth proportional to 155,985.80, 234,021.90 and 103,497.80 is: 155,275.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,985.80 : 234,021.90 = 103,497.80 : x
  2. Step 2: Convert to fraction form
    155,985.80/234,021.90 = 103,497.80/x
  3. Step 3: Cross multiply
    155,985.80x = 234,021.90 × 103,497.80
  4. Step 4: Simplify right side
    155,985.80x = 24,220,751,801.82
  5. Step 5: Solve for x
    x = 24,220,751,801.82/155,985.80
  6. Step 6: Final answer
    x = 155,275.36

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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.