Home / 108,109.55-149,109.09-93,027.49

Finding the Fourth Proportional to 108,109.55, 149,109.09 and 93,027.49

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Solution

The fourth proportional to 108,109.55, 149,109.09 and 93,027.49 is: 128,307.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,109.55 : 149,109.09 = 93,027.49 : x
  2. Step 2: Convert to fraction form
    108,109.55/149,109.09 = 93,027.49/x
  3. Step 3: Cross multiply
    108,109.55x = 149,109.09 × 93,027.49
  4. Step 4: Simplify right side
    108,109.55x = 13,871,243,657.26
  5. Step 5: Solve for x
    x = 13,871,243,657.26/108,109.55
  6. Step 6: Final answer
    x = 128,307.29

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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.