Home / 103,426.16-142,743.53-63,163.08

Finding the Fourth Proportional to 103,426.16, 142,743.53 and 63,163.08

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Solution

The fourth proportional to 103,426.16, 142,743.53 and 63,163.08 is: 87,174.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,426.16 : 142,743.53 = 63,163.08 : x
  2. Step 2: Convert to fraction form
    103,426.16/142,743.53 = 63,163.08/x
  3. Step 3: Cross multiply
    103,426.16x = 142,743.53 × 63,163.08
  4. Step 4: Simplify right side
    103,426.16x = 9,016,121,162.78
  5. Step 5: Solve for x
    x = 9,016,121,162.78/103,426.16
  6. Step 6: Final answer
    x = 87,174.48

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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.