Home / 147,507.90-203,501.43-85,377.51

Finding the Fourth Proportional to 147,507.90, 203,501.43 and 85,377.51

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Solution

The fourth proportional to 147,507.90, 203,501.43 and 85,377.51 is: 117,786.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,507.90 : 203,501.43 = 85,377.51 : x
  2. Step 2: Convert to fraction form
    147,507.90/203,501.43 = 85,377.51/x
  3. Step 3: Cross multiply
    147,507.90x = 203,501.43 × 85,377.51
  4. Step 4: Simplify right side
    147,507.90x = 17,374,445,374.84
  5. Step 5: Solve for x
    x = 17,374,445,374.84/147,507.90
  6. Step 6: Final answer
    x = 117,786.54

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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.