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Finding the Fourth Proportional to 159,888.40, 220,643.12 and 88,266.90

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Solution

The fourth proportional to 159,888.40, 220,643.12 and 88,266.90 is: 121,806.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,888.40 : 220,643.12 = 88,266.90 : x
  2. Step 2: Convert to fraction form
    159,888.40/220,643.12 = 88,266.90/x
  3. Step 3: Cross multiply
    159,888.40x = 220,643.12 × 88,266.90
  4. Step 4: Simplify right side
    159,888.40x = 19,475,484,208.73
  5. Step 5: Solve for x
    x = 19,475,484,208.73/159,888.40
  6. Step 6: Final answer
    x = 121,806.74

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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.