Home / 145,292.28-200,502.58-81,629.52

Finding the Fourth Proportional to 145,292.28, 200,502.58 and 81,629.52

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Solution

The fourth proportional to 145,292.28, 200,502.58 and 81,629.52 is: 112,648.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,292.28 : 200,502.58 = 81,629.52 : x
  2. Step 2: Convert to fraction form
    145,292.28/200,502.58 = 81,629.52/x
  3. Step 3: Cross multiply
    145,292.28x = 200,502.58 × 81,629.52
  4. Step 4: Simplify right side
    145,292.28x = 16,366,929,364.16
  5. Step 5: Solve for x
    x = 16,366,929,364.16/145,292.28
  6. Step 6: Final answer
    x = 112,648.31

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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.