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Finding the Fourth Proportional to 163,598.47, 225,762.61 and 90,999.79

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Solution

The fourth proportional to 163,598.47, 225,762.61 and 90,999.79 is: 125,577.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,598.47 : 225,762.61 = 90,999.79 : x
  2. Step 2: Convert to fraction form
    163,598.47/225,762.61 = 90,999.79/x
  3. Step 3: Cross multiply
    163,598.47x = 225,762.61 × 90,999.79
  4. Step 4: Simplify right side
    163,598.47x = 20,544,350,099.85
  5. Step 5: Solve for x
    x = 20,544,350,099.85/163,598.47
  6. Step 6: Final answer
    x = 125,577.89

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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.