Home / 142,483.40-213,725.10-136,416.20

Finding the Fourth Proportional to 142,483.40, 213,725.10 and 136,416.20

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Solution

The fourth proportional to 142,483.40, 213,725.10 and 136,416.20 is: 204,624.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,483.40 : 213,725.10 = 136,416.20 : x
  2. Step 2: Convert to fraction form
    142,483.40/213,725.10 = 136,416.20/x
  3. Step 3: Cross multiply
    142,483.40x = 213,725.10 × 136,416.20
  4. Step 4: Simplify right side
    142,483.40x = 29,155,565,986.62
  5. Step 5: Solve for x
    x = 29,155,565,986.62/142,483.40
  6. Step 6: Final answer
    x = 204,624.30

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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.