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Finding the Fourth Proportional to 111,225.87, 153,502.74 and 63,486.45

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Solution

The fourth proportional to 111,225.87, 153,502.74 and 63,486.45 is: 87,617.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,225.87 : 153,502.74 = 63,486.45 : x
  2. Step 2: Convert to fraction form
    111,225.87/153,502.74 = 63,486.45/x
  3. Step 3: Cross multiply
    111,225.87x = 153,502.74 × 63,486.45
  4. Step 4: Simplify right side
    111,225.87x = 9,745,344,027.87
  5. Step 5: Solve for x
    x = 9,745,344,027.87/111,225.87
  6. Step 6: Final answer
    x = 87,617.60

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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.