Home / 128,040.14-192,038.61-46,970.45

Finding the Fourth Proportional to 128,040.14, 192,038.61 and 46,970.45

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Solution

The fourth proportional to 128,040.14, 192,038.61 and 46,970.45 is: 70,447.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,040.14 : 192,038.61 = 46,970.45 : x
  2. Step 2: Convert to fraction form
    128,040.14/192,038.61 = 46,970.45/x
  3. Step 3: Cross multiply
    128,040.14x = 192,038.61 × 46,970.45
  4. Step 4: Simplify right side
    128,040.14x = 9,020,139,865.17
  5. Step 5: Solve for x
    x = 9,020,139,865.17/128,040.14
  6. Step 6: Final answer
    x = 70,447.75

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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.