Home / 142,886.61-214,341.57-71,772.66

Finding the Fourth Proportional to 142,886.61, 214,341.57 and 71,772.66

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Solution

The fourth proportional to 142,886.61, 214,341.57 and 71,772.66 is: 107,664.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,886.61 : 214,341.57 = 71,772.66 : x
  2. Step 2: Convert to fraction form
    142,886.61/214,341.57 = 71,772.66/x
  3. Step 3: Cross multiply
    142,886.61x = 214,341.57 × 71,772.66
  4. Step 4: Simplify right side
    142,886.61x = 15,383,864,627.48
  5. Step 5: Solve for x
    x = 15,383,864,627.48/142,886.61
  6. Step 6: Final answer
    x = 107,664.84

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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.