Home / 142,059.60-213,089.40-82,864.80

Finding the Fourth Proportional to 142,059.60, 213,089.40 and 82,864.80

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Solution

The fourth proportional to 142,059.60, 213,089.40 and 82,864.80 is: 124,297.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,059.60 : 213,089.40 = 82,864.80 : x
  2. Step 2: Convert to fraction form
    142,059.60/213,089.40 = 82,864.80/x
  3. Step 3: Cross multiply
    142,059.60x = 213,089.40 × 82,864.80
  4. Step 4: Simplify right side
    142,059.60x = 17,657,610,513.12
  5. Step 5: Solve for x
    x = 17,657,610,513.12/142,059.60
  6. Step 6: Final answer
    x = 124,297.20

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1.5x scale

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.