Home / 105,245.06-145,237.65-57,501.14

Finding the Fourth Proportional to 105,245.06, 145,237.65 and 57,501.14

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Solution

The fourth proportional to 105,245.06, 145,237.65 and 57,501.14 is: 79,351.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,245.06 : 145,237.65 = 57,501.14 : x
  2. Step 2: Convert to fraction form
    105,245.06/145,237.65 = 57,501.14/x
  3. Step 3: Cross multiply
    105,245.06x = 145,237.65 × 57,501.14
  4. Step 4: Simplify right side
    105,245.06x = 8,351,330,445.92
  5. Step 5: Solve for x
    x = 8,351,330,445.92/105,245.06
  6. Step 6: Final answer
    x = 79,351.28

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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.