Home / 103,406.04-155,080.71-28,508.58

Finding the Fourth Proportional to 103,406.04, 155,080.71 and 28,508.58

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Solution

The fourth proportional to 103,406.04, 155,080.71 and 28,508.58 is: 42,755.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,406.04 : 155,080.71 = 28,508.58 : x
  2. Step 2: Convert to fraction form
    103,406.04/155,080.71 = 28,508.58/x
  3. Step 3: Cross multiply
    103,406.04x = 155,080.71 × 28,508.58
  4. Step 4: Simplify right side
    103,406.04x = 4,421,130,827.49
  5. Step 5: Solve for x
    x = 4,421,130,827.49/103,406.04
  6. Step 6: Final answer
    x = 42,755.05

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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.