Home / 160,864.08-221,959.32-89,228.72

Finding the Fourth Proportional to 160,864.08, 221,959.32 and 89,228.72

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Solution

The fourth proportional to 160,864.08, 221,959.32 and 89,228.72 is: 123,117.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,864.08 : 221,959.32 = 89,228.72 : x
  2. Step 2: Convert to fraction form
    160,864.08/221,959.32 = 89,228.72/x
  3. Step 3: Cross multiply
    160,864.08x = 221,959.32 × 89,228.72
  4. Step 4: Simplify right side
    160,864.08x = 19,805,146,015.67
  5. Step 5: Solve for x
    x = 19,805,146,015.67/160,864.08
  6. Step 6: Final answer
    x = 123,117.27

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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.