Home / 106,665.12-147,188.34-61,331.04

Finding the Fourth Proportional to 106,665.12, 147,188.34 and 61,331.04

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Solution

The fourth proportional to 106,665.12, 147,188.34 and 61,331.04 is: 84,631.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,665.12 : 147,188.34 = 61,331.04 : x
  2. Step 2: Convert to fraction form
    106,665.12/147,188.34 = 61,331.04/x
  3. Step 3: Cross multiply
    106,665.12x = 147,188.34 × 61,331.04
  4. Step 4: Simplify right side
    106,665.12x = 9,027,213,968.07
  5. Step 5: Solve for x
    x = 9,027,213,968.07/106,665.12
  6. Step 6: Final answer
    x = 84,631.36

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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.