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Finding the Fourth Proportional to 160,763.51, 221,864.80 and 89,150.20

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Solution

The fourth proportional to 160,763.51, 221,864.80 and 89,150.20 is: 123,033.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,763.51 : 221,864.80 = 89,150.20 : x
  2. Step 2: Convert to fraction form
    160,763.51/221,864.80 = 89,150.20/x
  3. Step 3: Cross multiply
    160,763.51x = 221,864.80 × 89,150.20
  4. Step 4: Simplify right side
    160,763.51x = 19,779,291,292.96
  5. Step 5: Solve for x
    x = 19,779,291,292.96/160,763.51
  6. Step 6: Final answer
    x = 123,033.46

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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.