Home / 151,400.96-208,925.04-83,415.52

Finding the Fourth Proportional to 151,400.96, 208,925.04 and 83,415.52

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Solution

The fourth proportional to 151,400.96, 208,925.04 and 83,415.52 is: 115,108.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,400.96 : 208,925.04 = 83,415.52 : x
  2. Step 2: Convert to fraction form
    151,400.96/208,925.04 = 83,415.52/x
  3. Step 3: Cross multiply
    151,400.96x = 208,925.04 × 83,415.52
  4. Step 4: Simplify right side
    151,400.96x = 17,427,590,852.62
  5. Step 5: Solve for x
    x = 17,427,590,852.62/151,400.96
  6. Step 6: Final answer
    x = 115,108.85

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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.