Home / 128,341.36-192,544.84-49,434.40

Finding the Fourth Proportional to 128,341.36, 192,544.84 and 49,434.40

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Solution

The fourth proportional to 128,341.36, 192,544.84 and 49,434.40 is: 74,164.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,341.36 : 192,544.84 = 49,434.40 : x
  2. Step 2: Convert to fraction form
    128,341.36/192,544.84 = 49,434.40/x
  3. Step 3: Cross multiply
    128,341.36x = 192,544.84 × 49,434.40
  4. Step 4: Simplify right side
    128,341.36x = 9,518,338,638.50
  5. Step 5: Solve for x
    x = 9,518,338,638.50/128,341.36
  6. Step 6: Final answer
    x = 74,164.23

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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.