Home / 136,403.13-188,085.87-93,389.70

Finding the Fourth Proportional to 136,403.13, 188,085.87 and 93,389.70

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Solution

The fourth proportional to 136,403.13, 188,085.87 and 93,389.70 is: 128,774.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,403.13 : 188,085.87 = 93,389.70 : x
  2. Step 2: Convert to fraction form
    136,403.13/188,085.87 = 93,389.70/x
  3. Step 3: Cross multiply
    136,403.13x = 188,085.87 × 93,389.70
  4. Step 4: Simplify right side
    136,403.13x = 17,565,282,973.54
  5. Step 5: Solve for x
    x = 17,565,282,973.54/136,403.13
  6. Step 6: Final answer
    x = 128,774.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.