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Finding the Fourth Proportional to 100,700.84, 150,828.86 and 91,401.24

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Solution

The fourth proportional to 100,700.84, 150,828.86 and 91,401.24 is: 136,900.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,700.84 : 150,828.86 = 91,401.24 : x
  2. Step 2: Convert to fraction form
    100,700.84/150,828.86 = 91,401.24/x
  3. Step 3: Cross multiply
    100,700.84x = 150,828.86 × 91,401.24
  4. Step 4: Simplify right side
    100,700.84x = 13,785,944,831.79
  5. Step 5: Solve for x
    x = 13,785,944,831.79/100,700.84
  6. Step 6: Final answer
    x = 136,900.00

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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.