Home / 155,950.96-215,212.47-91,407.33

Finding the Fourth Proportional to 155,950.96, 215,212.47 and 91,407.33

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Solution

The fourth proportional to 155,950.96, 215,212.47 and 91,407.33 is: 126,142.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,950.96 : 215,212.47 = 91,407.33 : x
  2. Step 2: Convert to fraction form
    155,950.96/215,212.47 = 91,407.33/x
  3. Step 3: Cross multiply
    155,950.96x = 215,212.47 × 91,407.33
  4. Step 4: Simplify right side
    155,950.96x = 19,671,997,265.41
  5. Step 5: Solve for x
    x = 19,671,997,265.41/155,950.96
  6. Step 6: Final answer
    x = 126,142.20

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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.