Home / 128,332.65-192,434.73-39,574.62

Finding the Fourth Proportional to 128,332.65, 192,434.73 and 39,574.62

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Solution

The fourth proportional to 128,332.65, 192,434.73 and 39,574.62 is: 59,342.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,332.65 : 192,434.73 = 39,574.62 : x
  2. Step 2: Convert to fraction form
    128,332.65/192,434.73 = 39,574.62/x
  3. Step 3: Cross multiply
    128,332.65x = 192,434.73 × 39,574.62
  4. Step 4: Simplify right side
    128,332.65x = 7,615,531,314.55
  5. Step 5: Solve for x
    x = 7,615,531,314.55/128,332.65
  6. Step 6: Final answer
    x = 59,342.12

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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.