Home / 111,065.40-153,274.32-63,318.24

Finding the Fourth Proportional to 111,065.40, 153,274.32 and 63,318.24

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Solution

The fourth proportional to 111,065.40, 153,274.32 and 63,318.24 is: 87,381.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,065.40 : 153,274.32 = 63,318.24 : x
  2. Step 2: Convert to fraction form
    111,065.40/153,274.32 = 63,318.24/x
  3. Step 3: Cross multiply
    111,065.40x = 153,274.32 × 63,318.24
  4. Step 4: Simplify right side
    111,065.40x = 9,705,060,179.60
  5. Step 5: Solve for x
    x = 9,705,060,179.60/111,065.40
  6. Step 6: Final answer
    x = 87,381.49

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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.