Home / 145,325.29-200,567.69-81,663.09

Finding the Fourth Proportional to 145,325.29, 200,567.69 and 81,663.09

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Solution

The fourth proportional to 145,325.29, 200,567.69 and 81,663.09 is: 112,705.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,325.29 : 200,567.69 = 81,663.09 : x
  2. Step 2: Convert to fraction form
    145,325.29/200,567.69 = 81,663.09/x
  3. Step 3: Cross multiply
    145,325.29x = 200,567.69 × 81,663.09
  4. Step 4: Simplify right side
    145,325.29x = 16,378,976,911.25
  5. Step 5: Solve for x
    x = 16,378,976,911.25/145,325.29
  6. Step 6: Final answer
    x = 112,705.62

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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.