Home / 153,835.67-212,266.16-85,847.31

Finding the Fourth Proportional to 153,835.67, 212,266.16 and 85,847.31

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Solution

The fourth proportional to 153,835.67, 212,266.16 and 85,847.31 is: 118,454.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,835.67 : 212,266.16 = 85,847.31 : x
  2. Step 2: Convert to fraction form
    153,835.67/212,266.16 = 85,847.31/x
  3. Step 3: Cross multiply
    153,835.67x = 212,266.16 × 85,847.31
  4. Step 4: Simplify right side
    153,835.67x = 18,222,478,410.79
  5. Step 5: Solve for x
    x = 18,222,478,410.79/153,835.67
  6. Step 6: Final answer
    x = 118,454.19

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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.