Home / 152,170.31-228,068.51-85,470.23

Finding the Fourth Proportional to 152,170.31, 228,068.51 and 85,470.23

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Solution

The fourth proportional to 152,170.31, 228,068.51 and 85,470.23 is: 128,100.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,170.31 : 228,068.51 = 85,470.23 : x
  2. Step 2: Convert to fraction form
    152,170.31/228,068.51 = 85,470.23/x
  3. Step 3: Cross multiply
    152,170.31x = 228,068.51 × 85,470.23
  4. Step 4: Simplify right side
    152,170.31x = 19,493,068,005.46
  5. Step 5: Solve for x
    x = 19,493,068,005.46/152,170.31
  6. Step 6: Final answer
    x = 128,100.34

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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.