Home / 115,732.76-173,420.54-78,145.52

Finding the Fourth Proportional to 115,732.76, 173,420.54 and 78,145.52

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Solution

The fourth proportional to 115,732.76, 173,420.54 and 78,145.52 is: 117,097.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,732.76 : 173,420.54 = 78,145.52 : x
  2. Step 2: Convert to fraction form
    115,732.76/173,420.54 = 78,145.52/x
  3. Step 3: Cross multiply
    115,732.76x = 173,420.54 × 78,145.52
  4. Step 4: Simplify right side
    115,732.76x = 13,552,038,276.98
  5. Step 5: Solve for x
    x = 13,552,038,276.98/115,732.76
  6. Step 6: Final answer
    x = 117,097.69

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1.5x scale

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.