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Finding the Fourth Proportional to 101,159.70, 151,569.45 and 80,018.70

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Solution

The fourth proportional to 101,159.70, 151,569.45 and 80,018.70 is: 119,893.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,159.70 : 151,569.45 = 80,018.70 : x
  2. Step 2: Convert to fraction form
    101,159.70/151,569.45 = 80,018.70/x
  3. Step 3: Cross multiply
    101,159.70x = 151,569.45 × 80,018.70
  4. Step 4: Simplify right side
    101,159.70x = 12,128,390,348.72
  5. Step 5: Solve for x
    x = 12,128,390,348.72/101,159.70
  6. Step 6: Final answer
    x = 119,893.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.