Home / 145,689.40-218,534.10-100,588.60

Finding the Fourth Proportional to 145,689.40, 218,534.10 and 100,588.60

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Solution

The fourth proportional to 145,689.40, 218,534.10 and 100,588.60 is: 150,882.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,689.40 : 218,534.10 = 100,588.60 : x
  2. Step 2: Convert to fraction form
    145,689.40/218,534.10 = 100,588.60/x
  3. Step 3: Cross multiply
    145,689.40x = 218,534.10 × 100,588.60
  4. Step 4: Simplify right side
    145,689.40x = 21,982,039,171.26
  5. Step 5: Solve for x
    x = 21,982,039,171.26/145,689.40
  6. Step 6: Final answer
    x = 150,882.90

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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.