Home / 128,235.24-192,282.93-39,465.18

Finding the Fourth Proportional to 128,235.24, 192,282.93 and 39,465.18

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Solution

The fourth proportional to 128,235.24, 192,282.93 and 39,465.18 is: 59,176.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,235.24 : 192,282.93 = 39,465.18 : x
  2. Step 2: Convert to fraction form
    128,235.24/192,282.93 = 39,465.18/x
  3. Step 3: Cross multiply
    128,235.24x = 192,282.93 × 39,465.18
  4. Step 4: Simplify right side
    128,235.24x = 7,588,480,443.38
  5. Step 5: Solve for x
    x = 7,588,480,443.38/128,235.24
  6. Step 6: Final answer
    x = 59,176.25

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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.