Home / 128,284.44-192,444.75-39,545.16

Finding the Fourth Proportional to 128,284.44, 192,444.75 and 39,545.16

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Solution

The fourth proportional to 128,284.44, 192,444.75 and 39,545.16 is: 59,323.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,284.44 : 192,444.75 = 39,545.16 : x
  2. Step 2: Convert to fraction form
    128,284.44/192,444.75 = 39,545.16/x
  3. Step 3: Cross multiply
    128,284.44x = 192,444.75 × 39,545.16
  4. Step 4: Simplify right side
    128,284.44x = 7,610,258,429.91
  5. Step 5: Solve for x
    x = 7,610,258,429.91/128,284.44
  6. Step 6: Final answer
    x = 59,323.32

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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.