Home / 128,535.60-192,457.80-93,284.40

Finding the Fourth Proportional to 128,535.60, 192,457.80 and 93,284.40

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Solution

The fourth proportional to 128,535.60, 192,457.80 and 93,284.40 is: 139,675.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,535.60 : 192,457.80 = 93,284.40 : x
  2. Step 2: Convert to fraction form
    128,535.60/192,457.80 = 93,284.40/x
  3. Step 3: Cross multiply
    128,535.60x = 192,457.80 × 93,284.40
  4. Step 4: Simplify right side
    128,535.60x = 17,953,310,398.32
  5. Step 5: Solve for x
    x = 17,953,310,398.32/128,535.60
  6. Step 6: Final answer
    x = 139,675.78

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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.