Home / 145,745.34-201,178.89-85,335.39

Finding the Fourth Proportional to 145,745.34, 201,178.89 and 85,335.39

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Solution

The fourth proportional to 145,745.34, 201,178.89 and 85,335.39 is: 117,792.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,745.34 : 201,178.89 = 85,335.39 : x
  2. Step 2: Convert to fraction form
    145,745.34/201,178.89 = 85,335.39/x
  3. Step 3: Cross multiply
    145,745.34x = 201,178.89 × 85,335.39
  4. Step 4: Simplify right side
    145,745.34x = 17,167,679,037.92
  5. Step 5: Solve for x
    x = 17,167,679,037.92/145,745.34
  6. Step 6: Final answer
    x = 117,792.30

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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.