Home / 105,230.20-145,220.80-57,484.34

Finding the Fourth Proportional to 105,230.20, 145,220.80 and 57,484.34

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Solution

The fourth proportional to 105,230.20, 145,220.80 and 57,484.34 is: 79,330.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,230.20 : 145,220.80 = 57,484.34 : x
  2. Step 2: Convert to fraction form
    105,230.20/145,220.80 = 57,484.34/x
  3. Step 3: Cross multiply
    105,230.20x = 145,220.80 × 57,484.34
  4. Step 4: Simplify right side
    105,230.20x = 8,347,921,842.27
  5. Step 5: Solve for x
    x = 8,347,921,842.27/105,230.20
  6. Step 6: Final answer
    x = 79,330.10

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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.