Home / 147,147.83-203,060.18-85,905.75

Finding the Fourth Proportional to 147,147.83, 203,060.18 and 85,905.75

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Solution

The fourth proportional to 147,147.83, 203,060.18 and 85,905.75 is: 118,547.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,147.83 : 203,060.18 = 85,905.75 : x
  2. Step 2: Convert to fraction form
    147,147.83/203,060.18 = 85,905.75/x
  3. Step 3: Cross multiply
    147,147.83x = 203,060.18 × 85,905.75
  4. Step 4: Simplify right side
    147,147.83x = 17,444,037,058.04
  5. Step 5: Solve for x
    x = 17,444,037,058.04/147,147.83
  6. Step 6: Final answer
    x = 118,547.70

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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.