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Finding the Fourth Proportional to 173,445.28, 239,393.13 and 105,447.88

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Solution

The fourth proportional to 173,445.28, 239,393.13 and 105,447.88 is: 145,541.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,445.28 : 239,393.13 = 105,447.88 : x
  2. Step 2: Convert to fraction form
    173,445.28/239,393.13 = 105,447.88/x
  3. Step 3: Cross multiply
    173,445.28x = 239,393.13 × 105,447.88
  4. Step 4: Simplify right side
    173,445.28x = 25,243,498,045.06
  5. Step 5: Solve for x
    x = 25,243,498,045.06/173,445.28
  6. Step 6: Final answer
    x = 145,541.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.