Home / 160,742.90-221,830.44-89,129.60

Finding the Fourth Proportional to 160,742.90, 221,830.44 and 89,129.60

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Solution

The fourth proportional to 160,742.90, 221,830.44 and 89,129.60 is: 123,001.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,742.90 : 221,830.44 = 89,129.60 : x
  2. Step 2: Convert to fraction form
    160,742.90/221,830.44 = 89,129.60/x
  3. Step 3: Cross multiply
    160,742.90x = 221,830.44 × 89,129.60
  4. Step 4: Simplify right side
    160,742.90x = 19,771,658,385.02
  5. Step 5: Solve for x
    x = 19,771,658,385.02/160,742.90
  6. Step 6: Final answer
    x = 123,001.75

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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.