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Finding the Fourth Proportional to 160,430.66, 221,396.93 and 87,832.34

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Solution

The fourth proportional to 160,430.66, 221,396.93 and 87,832.34 is: 121,210.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,430.66 : 221,396.93 = 87,832.34 : x
  2. Step 2: Convert to fraction form
    160,430.66/221,396.93 = 87,832.34/x
  3. Step 3: Cross multiply
    160,430.66x = 221,396.93 × 87,832.34
  4. Step 4: Simplify right side
    160,430.66x = 19,445,809,323.73
  5. Step 5: Solve for x
    x = 19,445,809,323.73/160,430.66
  6. Step 6: Final answer
    x = 121,210.06

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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.