Home / 97,807.20-146,759.40-38,644.80

Finding the Fourth Proportional to 97,807.20, 146,759.40 and 38,644.80

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Solution

The fourth proportional to 97,807.20, 146,759.40 and 38,644.80 is: 57,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,807.20 : 146,759.40 = 38,644.80 : x
  2. Step 2: Convert to fraction form
    97,807.20/146,759.40 = 38,644.80/x
  3. Step 3: Cross multiply
    97,807.20x = 146,759.40 × 38,644.80
  4. Step 4: Simplify right side
    97,807.20x = 5,671,487,661.12
  5. Step 5: Solve for x
    x = 5,671,487,661.12/97,807.20
  6. Step 6: Final answer
    x = 57,986.40

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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.