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Finding the Fourth Proportional to 115,019.70, 158,723.46 and 64,030.76

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Solution

The fourth proportional to 115,019.70, 158,723.46 and 64,030.76 is: 88,360.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,019.70 : 158,723.46 = 64,030.76 : x
  2. Step 2: Convert to fraction form
    115,019.70/158,723.46 = 64,030.76/x
  3. Step 3: Cross multiply
    115,019.70x = 158,723.46 × 64,030.76
  4. Step 4: Simplify right side
    115,019.70x = 10,163,183,773.63
  5. Step 5: Solve for x
    x = 10,163,183,773.63/115,019.70
  6. Step 6: Final answer
    x = 88,360.37

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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.