Home / 128,277.60-192,437.46-39,531.12

Finding the Fourth Proportional to 128,277.60, 192,437.46 and 39,531.12

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Solution

The fourth proportional to 128,277.60, 192,437.46 and 39,531.12 is: 59,303.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,277.60 : 192,437.46 = 39,531.12 : x
  2. Step 2: Convert to fraction form
    128,277.60/192,437.46 = 39,531.12/x
  3. Step 3: Cross multiply
    128,277.60x = 192,437.46 × 39,531.12
  4. Step 4: Simplify right side
    128,277.60x = 7,607,268,323.76
  5. Step 5: Solve for x
    x = 7,607,268,323.76/128,277.60
  6. Step 6: Final answer
    x = 59,303.17

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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.