Home / 103,130.18-154,695.39-28,250.97

Finding the Fourth Proportional to 103,130.18, 154,695.39 and 28,250.97

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Solution

The fourth proportional to 103,130.18, 154,695.39 and 28,250.97 is: 42,376.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,130.18 : 154,695.39 = 28,250.97 : x
  2. Step 2: Convert to fraction form
    103,130.18/154,695.39 = 28,250.97/x
  3. Step 3: Cross multiply
    103,130.18x = 154,695.39 × 28,250.97
  4. Step 4: Simplify right side
    103,130.18x = 4,370,294,822.03
  5. Step 5: Solve for x
    x = 4,370,294,822.03/103,130.18
  6. Step 6: Final answer
    x = 42,376.49

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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.