Home / 152,150.40-228,225.60-128,530.80

Finding the Fourth Proportional to 152,150.40, 228,225.60 and 128,530.80

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Solution

The fourth proportional to 152,150.40, 228,225.60 and 128,530.80 is: 192,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,150.40 : 228,225.60 = 128,530.80 : x
  2. Step 2: Convert to fraction form
    152,150.40/228,225.60 = 128,530.80/x
  3. Step 3: Cross multiply
    152,150.40x = 228,225.60 × 128,530.80
  4. Step 4: Simplify right side
    152,150.40x = 29,334,018,948.48
  5. Step 5: Solve for x
    x = 29,334,018,948.48/152,150.40
  6. Step 6: Final answer
    x = 192,796.20

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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.