Home / 145,438.47-200,539.60-102,404.20

Finding the Fourth Proportional to 145,438.47, 200,539.60 and 102,404.20

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Solution

The fourth proportional to 145,438.47, 200,539.60 and 102,404.20 is: 141,201.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,438.47 : 200,539.60 = 102,404.20 : x
  2. Step 2: Convert to fraction form
    145,438.47/200,539.60 = 102,404.20/x
  3. Step 3: Cross multiply
    145,438.47x = 200,539.60 × 102,404.20
  4. Step 4: Simplify right side
    145,438.47x = 20,536,097,306.32
  5. Step 5: Solve for x
    x = 20,536,097,306.32/145,438.47
  6. Step 6: Final answer
    x = 141,201.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.