Home / 117,138.08-175,707.12-28,391.59

Finding the Fourth Proportional to 117,138.08, 175,707.12 and 28,391.59

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Solution

The fourth proportional to 117,138.08, 175,707.12 and 28,391.59 is: 42,587.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,138.08 : 175,707.12 = 28,391.59 : x
  2. Step 2: Convert to fraction form
    117,138.08/175,707.12 = 28,391.59/x
  3. Step 3: Cross multiply
    117,138.08x = 175,707.12 × 28,391.59
  4. Step 4: Simplify right side
    117,138.08x = 4,988,603,490.63
  5. Step 5: Solve for x
    x = 4,988,603,490.63/117,138.08
  6. Step 6: Final answer
    x = 42,587.38

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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.