Home / 102,487.02-153,735.24-31,404.60

Finding the Fourth Proportional to 102,487.02, 153,735.24 and 31,404.60

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Solution

The fourth proportional to 102,487.02, 153,735.24 and 31,404.60 is: 47,108.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,487.02 : 153,735.24 = 31,404.60 : x
  2. Step 2: Convert to fraction form
    102,487.02/153,735.24 = 31,404.60/x
  3. Step 3: Cross multiply
    102,487.02x = 153,735.24 × 31,404.60
  4. Step 4: Simplify right side
    102,487.02x = 4,827,993,718.10
  5. Step 5: Solve for x
    x = 4,827,993,718.10/102,487.02
  6. Step 6: Final answer
    x = 47,108.34

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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.