Home / 131,775.18-181,847.53-71,345.33

Finding the Fourth Proportional to 131,775.18, 181,847.53 and 71,345.33

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Solution

The fourth proportional to 131,775.18, 181,847.53 and 71,345.33 is: 98,455.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,775.18 : 181,847.53 = 71,345.33 : x
  2. Step 2: Convert to fraction form
    131,775.18/181,847.53 = 71,345.33/x
  3. Step 3: Cross multiply
    131,775.18x = 181,847.53 × 71,345.33
  4. Step 4: Simplify right side
    131,775.18x = 12,973,972,037.53
  5. Step 5: Solve for x
    x = 12,973,972,037.53/131,775.18
  6. Step 6: Final answer
    x = 98,455.35

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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.