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Finding the Fourth Proportional to 160,807.79, 221,928.38 and 89,210.88

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Solution

The fourth proportional to 160,807.79, 221,928.38 and 89,210.88 is: 123,118.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,807.79 : 221,928.38 = 89,210.88 : x
  2. Step 2: Convert to fraction form
    160,807.79/221,928.38 = 89,210.88/x
  3. Step 3: Cross multiply
    160,807.79x = 221,928.38 × 89,210.88
  4. Step 4: Simplify right side
    160,807.79x = 19,798,426,076.77
  5. Step 5: Solve for x
    x = 19,798,426,076.77/160,807.79
  6. Step 6: Final answer
    x = 123,118.58

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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.