Home / 105,267.09-145,278.45-57,527.55

Finding the Fourth Proportional to 105,267.09, 145,278.45 and 57,527.55

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Solution

The fourth proportional to 105,267.09, 145,278.45 and 57,527.55 is: 79,393.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,267.09 : 145,278.45 = 57,527.55 : x
  2. Step 2: Convert to fraction form
    105,267.09/145,278.45 = 57,527.55/x
  3. Step 3: Cross multiply
    105,267.09x = 145,278.45 × 57,527.55
  4. Step 4: Simplify right side
    105,267.09x = 8,357,513,296.30
  5. Step 5: Solve for x
    x = 8,357,513,296.30/105,267.09
  6. Step 6: Final answer
    x = 79,393.41

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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.