Home / 103,563.18-142,883.46-61,113.60

Finding the Fourth Proportional to 103,563.18, 142,883.46 and 61,113.60

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Solution

The fourth proportional to 103,563.18, 142,883.46 and 61,113.60 is: 84,316.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,563.18 : 142,883.46 = 61,113.60 : x
  2. Step 2: Convert to fraction form
    103,563.18/142,883.46 = 61,113.60/x
  3. Step 3: Cross multiply
    103,563.18x = 142,883.46 × 61,113.60
  4. Step 4: Simplify right side
    103,563.18x = 8,732,122,621.06
  5. Step 5: Solve for x
    x = 8,732,122,621.06/103,563.18
  6. Step 6: Final answer
    x = 84,316.86

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1.5x scale

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.