Home / 111,612.02-153,981.18-63,202.84

Finding the Fourth Proportional to 111,612.02, 153,981.18 and 63,202.84

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Solution

The fourth proportional to 111,612.02, 153,981.18 and 63,202.84 is: 87,195.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,612.02 : 153,981.18 = 63,202.84 : x
  2. Step 2: Convert to fraction form
    111,612.02/153,981.18 = 63,202.84/x
  3. Step 3: Cross multiply
    111,612.02x = 153,981.18 × 63,202.84
  4. Step 4: Simplify right side
    111,612.02x = 9,732,047,882.55
  5. Step 5: Solve for x
    x = 9,732,047,882.55/111,612.02
  6. Step 6: Final answer
    x = 87,195.34

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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.