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Finding the Fourth Proportional to 160,019.40, 220,823.60 and 88,398.75

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Solution

The fourth proportional to 160,019.40, 220,823.60 and 88,398.75 is: 121,988.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,019.40 : 220,823.60 = 88,398.75 : x
  2. Step 2: Convert to fraction form
    160,019.40/220,823.60 = 88,398.75/x
  3. Step 3: Cross multiply
    160,019.40x = 220,823.60 × 88,398.75
  4. Step 4: Simplify right side
    160,019.40x = 19,520,529,768.51
  5. Step 5: Solve for x
    x = 19,520,529,768.51/160,019.40
  6. Step 6: Final answer
    x = 121,988.52

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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.