Home / 142,455.60-213,683.40-83,260.80

Finding the Fourth Proportional to 142,455.60, 213,683.40 and 83,260.80

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Solution

The fourth proportional to 142,455.60, 213,683.40 and 83,260.80 is: 124,891.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,455.60 : 213,683.40 = 83,260.80 : x
  2. Step 2: Convert to fraction form
    142,455.60/213,683.40 = 83,260.80/x
  3. Step 3: Cross multiply
    142,455.60x = 213,683.40 × 83,260.80
  4. Step 4: Simplify right side
    142,455.60x = 17,791,450,830.72
  5. Step 5: Solve for x
    x = 17,791,450,830.72/142,455.60
  6. Step 6: Final answer
    x = 124,891.20

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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.