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Finding the Fourth Proportional to 160,011.57, 220,814.61 and 88,390.05

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Solution

The fourth proportional to 160,011.57, 220,814.61 and 88,390.05 is: 121,977.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,011.57 : 220,814.61 = 88,390.05 : x
  2. Step 2: Convert to fraction form
    160,011.57/220,814.61 = 88,390.05/x
  3. Step 3: Cross multiply
    160,011.57x = 220,814.61 × 88,390.05
  4. Step 4: Simplify right side
    160,011.57x = 19,517,814,501.20
  5. Step 5: Solve for x
    x = 19,517,814,501.20/160,011.57
  6. Step 6: Final answer
    x = 121,977.52

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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.