Home / 152,005.70-228,008.55-128,386.10

Finding the Fourth Proportional to 152,005.70, 228,008.55 and 128,386.10

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Solution

The fourth proportional to 152,005.70, 228,008.55 and 128,386.10 is: 192,579.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,005.70 : 228,008.55 = 128,386.10 : x
  2. Step 2: Convert to fraction form
    152,005.70/228,008.55 = 128,386.10/x
  3. Step 3: Cross multiply
    152,005.70x = 228,008.55 × 128,386.10
  4. Step 4: Simplify right side
    152,005.70x = 29,273,128,501.16
  5. Step 5: Solve for x
    x = 29,273,128,501.16/152,005.70
  6. Step 6: Final answer
    x = 192,579.15

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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.