Home / 156,985.24-216,640.02-85,365.22

Finding the Fourth Proportional to 156,985.24, 216,640.02 and 85,365.22

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Solution

The fourth proportional to 156,985.24, 216,640.02 and 85,365.22 is: 117,804.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,985.24 : 216,640.02 = 85,365.22 : x
  2. Step 2: Convert to fraction form
    156,985.24/216,640.02 = 85,365.22/x
  3. Step 3: Cross multiply
    156,985.24x = 216,640.02 × 85,365.22
  4. Step 4: Simplify right side
    156,985.24x = 18,493,522,968.10
  5. Step 5: Solve for x
    x = 18,493,522,968.10/156,985.24
  6. Step 6: Final answer
    x = 117,804.22

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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.