Home / 145,160.16-217,765.74-66,282.36

Finding the Fourth Proportional to 145,160.16, 217,765.74 and 66,282.36

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Solution

The fourth proportional to 145,160.16, 217,765.74 and 66,282.36 is: 99,435.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,160.16 : 217,765.74 = 66,282.36 : x
  2. Step 2: Convert to fraction form
    145,160.16/217,765.74 = 66,282.36/x
  3. Step 3: Cross multiply
    145,160.16x = 217,765.74 × 66,282.36
  4. Step 4: Simplify right side
    145,160.16x = 14,434,027,174.35
  5. Step 5: Solve for x
    x = 14,434,027,174.35/145,160.16
  6. Step 6: Final answer
    x = 99,435.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.