Home / 136,003.60-204,005.40-42,518.80

Finding the Fourth Proportional to 136,003.60, 204,005.40 and 42,518.80

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Solution

The fourth proportional to 136,003.60, 204,005.40 and 42,518.80 is: 63,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,003.60 : 204,005.40 = 42,518.80 : x
  2. Step 2: Convert to fraction form
    136,003.60/204,005.40 = 42,518.80/x
  3. Step 3: Cross multiply
    136,003.60x = 204,005.40 × 42,518.80
  4. Step 4: Simplify right side
    136,003.60x = 8,674,064,801.52
  5. Step 5: Solve for x
    x = 8,674,064,801.52/136,003.60
  6. Step 6: Final answer
    x = 63,778.20

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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.