Home / 145,325.92-200,555.71-81,663.57

Finding the Fourth Proportional to 145,325.92, 200,555.71 and 81,663.57

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Solution

The fourth proportional to 145,325.92, 200,555.71 and 81,663.57 is: 112,699.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,325.92 : 200,555.71 = 81,663.57 : x
  2. Step 2: Convert to fraction form
    145,325.92/200,555.71 = 81,663.57/x
  3. Step 3: Cross multiply
    145,325.92x = 200,555.71 × 81,663.57
  4. Step 4: Simplify right side
    145,325.92x = 16,378,095,262.48
  5. Step 5: Solve for x
    x = 16,378,095,262.48/145,325.92
  6. Step 6: Final answer
    x = 112,699.06

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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.