Home / 103,359.04-155,010.20-28,461.60

Finding the Fourth Proportional to 103,359.04, 155,010.20 and 28,461.60

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Solution

The fourth proportional to 103,359.04, 155,010.20 and 28,461.60 is: 42,684.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,359.04 : 155,010.20 = 28,461.60 : x
  2. Step 2: Convert to fraction form
    103,359.04/155,010.20 = 28,461.60/x
  3. Step 3: Cross multiply
    103,359.04x = 155,010.20 × 28,461.60
  4. Step 4: Simplify right side
    103,359.04x = 4,411,838,308.32
  5. Step 5: Solve for x
    x = 4,411,838,308.32/103,359.04
  6. Step 6: Final answer
    x = 42,684.59

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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.