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Finding the Fourth Proportional to 109,316.89, 150,895.06 and 64,009.44

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Solution

The fourth proportional to 109,316.89, 150,895.06 and 64,009.44 is: 88,355.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,316.89 : 150,895.06 = 64,009.44 : x
  2. Step 2: Convert to fraction form
    109,316.89/150,895.06 = 64,009.44/x
  3. Step 3: Cross multiply
    109,316.89x = 150,895.06 × 64,009.44
  4. Step 4: Simplify right side
    109,316.89x = 9,658,708,129.34
  5. Step 5: Solve for x
    x = 9,658,708,129.34/109,316.89
  6. Step 6: Final answer
    x = 88,355.13

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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.