Home / 142,060.10-213,090.15-82,865.30

Finding the Fourth Proportional to 142,060.10, 213,090.15 and 82,865.30

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Solution

The fourth proportional to 142,060.10, 213,090.15 and 82,865.30 is: 124,297.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,060.10 : 213,090.15 = 82,865.30 : x
  2. Step 2: Convert to fraction form
    142,060.10/213,090.15 = 82,865.30/x
  3. Step 3: Cross multiply
    142,060.10x = 213,090.15 × 82,865.30
  4. Step 4: Simplify right side
    142,060.10x = 17,657,779,206.80
  5. Step 5: Solve for x
    x = 17,657,779,206.80/142,060.10
  6. Step 6: Final answer
    x = 124,297.95

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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.