Home / 145,921.60-218,882.40-99,265.60

Finding the Fourth Proportional to 145,921.60, 218,882.40 and 99,265.60

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Solution

The fourth proportional to 145,921.60, 218,882.40 and 99,265.60 is: 148,898.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,921.60 : 218,882.40 = 99,265.60 : x
  2. Step 2: Convert to fraction form
    145,921.60/218,882.40 = 99,265.60/x
  3. Step 3: Cross multiply
    145,921.60x = 218,882.40 × 99,265.60
  4. Step 4: Simplify right side
    145,921.60x = 21,727,492,765.44
  5. Step 5: Solve for x
    x = 21,727,492,765.44/145,921.60
  6. Step 6: Final answer
    x = 148,898.40

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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.