Home / 145,283.52-200,588.10-90,918.35

Finding the Fourth Proportional to 145,283.52, 200,588.10 and 90,918.35

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Solution

The fourth proportional to 145,283.52, 200,588.10 and 90,918.35 is: 125,527.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,283.52 : 200,588.10 = 90,918.35 : x
  2. Step 2: Convert to fraction form
    145,283.52/200,588.10 = 90,918.35/x
  3. Step 3: Cross multiply
    145,283.52x = 200,588.10 × 90,918.35
  4. Step 4: Simplify right side
    145,283.52x = 18,237,138,489.96
  5. Step 5: Solve for x
    x = 18,237,138,489.96/145,283.52
  6. Step 6: Final answer
    x = 125,527.92

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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.