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Finding the Fourth Proportional to 119,152.87, 164,430.93 and 65,437.90

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Solution

The fourth proportional to 119,152.87, 164,430.93 and 65,437.90 is: 90,304.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,152.87 : 164,430.93 = 65,437.90 : x
  2. Step 2: Convert to fraction form
    119,152.87/164,430.93 = 65,437.90/x
  3. Step 3: Cross multiply
    119,152.87x = 164,430.93 × 65,437.90
  4. Step 4: Simplify right side
    119,152.87x = 10,760,014,754.25
  5. Step 5: Solve for x
    x = 10,760,014,754.25/119,152.87
  6. Step 6: Final answer
    x = 90,304.29

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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.