Home / 99,119.79-136,786.28-53,798.18

Finding the Fourth Proportional to 99,119.79, 136,786.28 and 53,798.18

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Solution

The fourth proportional to 99,119.79, 136,786.28 and 53,798.18 is: 74,242.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,119.79 : 136,786.28 = 53,798.18 : x
  2. Step 2: Convert to fraction form
    99,119.79/136,786.28 = 53,798.18/x
  3. Step 3: Cross multiply
    99,119.79x = 136,786.28 × 53,798.18
  4. Step 4: Simplify right side
    99,119.79x = 7,358,851,960.05
  5. Step 5: Solve for x
    x = 7,358,851,960.05/99,119.79
  6. Step 6: Final answer
    x = 74,242.01

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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.