Home / 134,765.60-202,148.40-39,999.20

Finding the Fourth Proportional to 134,765.60, 202,148.40 and 39,999.20

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Solution

The fourth proportional to 134,765.60, 202,148.40 and 39,999.20 is: 59,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,765.60 : 202,148.40 = 39,999.20 : x
  2. Step 2: Convert to fraction form
    134,765.60/202,148.40 = 39,999.20/x
  3. Step 3: Cross multiply
    134,765.60x = 202,148.40 × 39,999.20
  4. Step 4: Simplify right side
    134,765.60x = 8,085,774,281.28
  5. Step 5: Solve for x
    x = 8,085,774,281.28/134,765.60
  6. Step 6: Final answer
    x = 59,998.80

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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.