Home / 141,686.64-195,527.76-78,024.68

Finding the Fourth Proportional to 141,686.64, 195,527.76 and 78,024.68

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Solution

The fourth proportional to 141,686.64, 195,527.76 and 78,024.68 is: 107,674.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,686.64 : 195,527.76 = 78,024.68 : x
  2. Step 2: Convert to fraction form
    141,686.64/195,527.76 = 78,024.68/x
  3. Step 3: Cross multiply
    141,686.64x = 195,527.76 × 78,024.68
  4. Step 4: Simplify right side
    141,686.64x = 15,255,990,905.12
  5. Step 5: Solve for x
    x = 15,255,990,905.12/141,686.64
  6. Step 6: Final answer
    x = 107,674.17

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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.