Home / 115,428.90-173,143.35-70,911.30

Finding the Fourth Proportional to 115,428.90, 173,143.35 and 70,911.30

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Solution

The fourth proportional to 115,428.90, 173,143.35 and 70,911.30 is: 106,366.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,428.90 : 173,143.35 = 70,911.30 : x
  2. Step 2: Convert to fraction form
    115,428.90/173,143.35 = 70,911.30/x
  3. Step 3: Cross multiply
    115,428.90x = 173,143.35 × 70,911.30
  4. Step 4: Simplify right side
    115,428.90x = 12,277,820,034.86
  5. Step 5: Solve for x
    x = 12,277,820,034.86/115,428.90
  6. Step 6: Final answer
    x = 106,366.95

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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.