Home / 161,042.64-222,215.16-89,423.28

Finding the Fourth Proportional to 161,042.64, 222,215.16 and 89,423.28

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Solution

The fourth proportional to 161,042.64, 222,215.16 and 89,423.28 is: 123,390.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,042.64 : 222,215.16 = 89,423.28 : x
  2. Step 2: Convert to fraction form
    161,042.64/222,215.16 = 89,423.28/x
  3. Step 3: Cross multiply
    161,042.64x = 222,215.16 × 89,423.28
  4. Step 4: Simplify right side
    161,042.64x = 19,871,208,472.92
  5. Step 5: Solve for x
    x = 19,871,208,472.92/161,042.64
  6. Step 6: Final answer
    x = 123,390.98

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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.