Home / 145,749.51-201,134.75-84,507.57

Finding the Fourth Proportional to 145,749.51, 201,134.75 and 84,507.57

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Solution

The fourth proportional to 145,749.51, 201,134.75 and 84,507.57 is: 116,620.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,749.51 : 201,134.75 = 84,507.57 : x
  2. Step 2: Convert to fraction form
    145,749.51/201,134.75 = 84,507.57/x
  3. Step 3: Cross multiply
    145,749.51x = 201,134.75 × 84,507.57
  4. Step 4: Simplify right side
    145,749.51x = 16,997,408,542.52
  5. Step 5: Solve for x
    x = 16,997,408,542.52/145,749.51
  6. Step 6: Final answer
    x = 116,620.69

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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.