Home / 156,621.32-216,137.34-88,637.06

Finding the Fourth Proportional to 156,621.32, 216,137.34 and 88,637.06

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Solution

The fourth proportional to 156,621.32, 216,137.34 and 88,637.06 is: 122,319.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,621.32 : 216,137.34 = 88,637.06 : x
  2. Step 2: Convert to fraction form
    156,621.32/216,137.34 = 88,637.06/x
  3. Step 3: Cross multiply
    156,621.32x = 216,137.34 × 88,637.06
  4. Step 4: Simplify right side
    156,621.32x = 19,157,778,056.99
  5. Step 5: Solve for x
    x = 19,157,778,056.99/156,621.32
  6. Step 6: Final answer
    x = 122,319.09

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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.