Home / 128,458.46-192,438.32-94,663.13

Finding the Fourth Proportional to 128,458.46, 192,438.32 and 94,663.13

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Solution

The fourth proportional to 128,458.46, 192,438.32 and 94,663.13 is: 141,810.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,458.46 : 192,438.32 = 94,663.13 : x
  2. Step 2: Convert to fraction form
    128,458.46/192,438.32 = 94,663.13/x
  3. Step 3: Cross multiply
    128,458.46x = 192,438.32 × 94,663.13
  4. Step 4: Simplify right side
    128,458.46x = 18,216,813,703.14
  5. Step 5: Solve for x
    x = 18,216,813,703.14/128,458.46
  6. Step 6: Final answer
    x = 141,810.93

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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.