Home / 115,437.90-173,156.85-103,628.10

Finding the Fourth Proportional to 115,437.90, 173,156.85 and 103,628.10

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Solution

The fourth proportional to 115,437.90, 173,156.85 and 103,628.10 is: 155,442.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,437.90 : 173,156.85 = 103,628.10 : x
  2. Step 2: Convert to fraction form
    115,437.90/173,156.85 = 103,628.10/x
  3. Step 3: Cross multiply
    115,437.90x = 173,156.85 × 103,628.10
  4. Step 4: Simplify right side
    115,437.90x = 17,943,915,367.49
  5. Step 5: Solve for x
    x = 17,943,915,367.49/115,437.90
  6. Step 6: Final answer
    x = 155,442.15

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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.