Home / 108,840.78-150,157.35-62,870.04

Finding the Fourth Proportional to 108,840.78, 150,157.35 and 62,870.04

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Solution

The fourth proportional to 108,840.78, 150,157.35 and 62,870.04 is: 86,735.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,840.78 : 150,157.35 = 62,870.04 : x
  2. Step 2: Convert to fraction form
    108,840.78/150,157.35 = 62,870.04/x
  3. Step 3: Cross multiply
    108,840.78x = 150,157.35 × 62,870.04
  4. Step 4: Simplify right side
    108,840.78x = 9,440,398,600.79
  5. Step 5: Solve for x
    x = 9,440,398,600.79/108,840.78
  6. Step 6: Final answer
    x = 86,735.86

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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.