Home / 85,837.44-128,032.35-83,213.04

Finding the Fourth Proportional to 85,837.44, 128,032.35 and 83,213.04

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Solution

The fourth proportional to 85,837.44, 128,032.35 and 83,213.04 is: 124,117.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,837.44 : 128,032.35 = 83,213.04 : x
  2. Step 2: Convert to fraction form
    85,837.44/128,032.35 = 83,213.04/x
  3. Step 3: Cross multiply
    85,837.44x = 128,032.35 × 83,213.04
  4. Step 4: Simplify right side
    85,837.44x = 10,653,961,061.84
  5. Step 5: Solve for x
    x = 10,653,961,061.84/85,837.44
  6. Step 6: Final answer
    x = 124,117.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.