Home / 151,432.15-208,973.55-83,455.42

Finding the Fourth Proportional to 151,432.15, 208,973.55 and 83,455.42

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Solution

The fourth proportional to 151,432.15, 208,973.55 and 83,455.42 is: 115,166.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,432.15 : 208,973.55 = 83,455.42 : x
  2. Step 2: Convert to fraction form
    151,432.15/208,973.55 = 83,455.42/x
  3. Step 3: Cross multiply
    151,432.15x = 208,973.55 × 83,455.42
  4. Step 4: Simplify right side
    151,432.15x = 17,439,975,384.14
  5. Step 5: Solve for x
    x = 17,439,975,384.14/151,432.15
  6. Step 6: Final answer
    x = 115,166.93

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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.