Home / 155,962.86-215,228.10-84,342.93

Finding the Fourth Proportional to 155,962.86, 215,228.10 and 84,342.93

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Solution

The fourth proportional to 155,962.86, 215,228.10 and 84,342.93 is: 116,392.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,962.86 : 215,228.10 = 84,342.93 : x
  2. Step 2: Convert to fraction form
    155,962.86/215,228.10 = 84,342.93/x
  3. Step 3: Cross multiply
    155,962.86x = 215,228.10 × 84,342.93
  4. Step 4: Simplify right side
    155,962.86x = 18,152,968,572.33
  5. Step 5: Solve for x
    x = 18,152,968,572.33/155,962.86
  6. Step 6: Final answer
    x = 116,392.89

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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.