Home / 152,025.70-228,038.55-128,406.10

Finding the Fourth Proportional to 152,025.70, 228,038.55 and 128,406.10

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Solution

The fourth proportional to 152,025.70, 228,038.55 and 128,406.10 is: 192,609.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,025.70 : 228,038.55 = 128,406.10 : x
  2. Step 2: Convert to fraction form
    152,025.70/228,038.55 = 128,406.10/x
  3. Step 3: Cross multiply
    152,025.70x = 228,038.55 × 128,406.10
  4. Step 4: Simplify right side
    152,025.70x = 29,281,540,855.16
  5. Step 5: Solve for x
    x = 29,281,540,855.16/152,025.70
  6. Step 6: Final answer
    x = 192,609.15

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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.