Home / 103,335.10-155,003.48-28,459.38

Finding the Fourth Proportional to 103,335.10, 155,003.48 and 28,459.38

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Solution

The fourth proportional to 103,335.10, 155,003.48 and 28,459.38 is: 42,689.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,335.10 : 155,003.48 = 28,459.38 : x
  2. Step 2: Convert to fraction form
    103,335.10/155,003.48 = 28,459.38/x
  3. Step 3: Cross multiply
    103,335.10x = 155,003.48 × 28,459.38
  4. Step 4: Simplify right side
    103,335.10x = 4,411,302,938.64
  5. Step 5: Solve for x
    x = 4,411,302,938.64/103,335.10
  6. Step 6: Final answer
    x = 42,689.30

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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.