Home / 161,031.60-222,224.04-89,411.76

Finding the Fourth Proportional to 161,031.60, 222,224.04 and 89,411.76

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Solution

The fourth proportional to 161,031.60, 222,224.04 and 89,411.76 is: 123,388.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,031.60 : 222,224.04 = 89,411.76 : x
  2. Step 2: Convert to fraction form
    161,031.60/222,224.04 = 89,411.76/x
  3. Step 3: Cross multiply
    161,031.60x = 222,224.04 × 89,411.76
  4. Step 4: Simplify right side
    161,031.60x = 19,869,442,530.71
  5. Step 5: Solve for x
    x = 19,869,442,530.71/161,031.60
  6. Step 6: Final answer
    x = 123,388.47

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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.