Home / 161,038.08-222,228.48-89,415.84

Finding the Fourth Proportional to 161,038.08, 222,228.48 and 89,415.84

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Solution

The fourth proportional to 161,038.08, 222,228.48 and 89,415.84 is: 123,391.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,038.08 : 222,228.48 = 89,415.84 : x
  2. Step 2: Convert to fraction form
    161,038.08/222,228.48 = 89,415.84/x
  3. Step 3: Cross multiply
    161,038.08x = 222,228.48 × 89,415.84
  4. Step 4: Simplify right side
    161,038.08x = 19,870,746,211.12
  5. Step 5: Solve for x
    x = 19,870,746,211.12/161,038.08
  6. Step 6: Final answer
    x = 123,391.60

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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.