Home / 142,060.60-213,090.90-82,865.80

Finding the Fourth Proportional to 142,060.60, 213,090.90 and 82,865.80

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Solution

The fourth proportional to 142,060.60, 213,090.90 and 82,865.80 is: 124,298.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,060.60 : 213,090.90 = 82,865.80 : x
  2. Step 2: Convert to fraction form
    142,060.60/213,090.90 = 82,865.80/x
  3. Step 3: Cross multiply
    142,060.60x = 213,090.90 × 82,865.80
  4. Step 4: Simplify right side
    142,060.60x = 17,657,947,901.22
  5. Step 5: Solve for x
    x = 17,657,947,901.22/142,060.60
  6. Step 6: Final answer
    x = 124,298.70

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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.