Home / 108,997.12-150,430.80-66,566.08

Finding the Fourth Proportional to 108,997.12, 150,430.80 and 66,566.08

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Solution

The fourth proportional to 108,997.12, 150,430.80 and 66,566.08 is: 91,870.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,997.12 : 150,430.80 = 66,566.08 : x
  2. Step 2: Convert to fraction form
    108,997.12/150,430.80 = 66,566.08/x
  3. Step 3: Cross multiply
    108,997.12x = 150,430.80 × 66,566.08
  4. Step 4: Simplify right side
    108,997.12x = 10,013,588,667.26
  5. Step 5: Solve for x
    x = 10,013,588,667.26/108,997.12
  6. Step 6: Final answer
    x = 91,870.21

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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.