Home / 145,563.16-200,876.80-81,901.04

Finding the Fourth Proportional to 145,563.16, 200,876.80 and 81,901.04

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Solution

The fourth proportional to 145,563.16, 200,876.80 and 81,901.04 is: 113,023.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,563.16 : 200,876.80 = 81,901.04 : x
  2. Step 2: Convert to fraction form
    145,563.16/200,876.80 = 81,901.04/x
  3. Step 3: Cross multiply
    145,563.16x = 200,876.80 × 81,901.04
  4. Step 4: Simplify right side
    145,563.16x = 16,452,018,831.87
  5. Step 5: Solve for x
    x = 16,452,018,831.87/145,563.16
  6. Step 6: Final answer
    x = 113,023.23

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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.