Home / 105,049.56-144,969.45-57,303.91

Finding the Fourth Proportional to 105,049.56, 144,969.45 and 57,303.91

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Solution

The fourth proportional to 105,049.56, 144,969.45 and 57,303.91 is: 79,079.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,049.56 : 144,969.45 = 57,303.91 : x
  2. Step 2: Convert to fraction form
    105,049.56/144,969.45 = 57,303.91/x
  3. Step 3: Cross multiply
    105,049.56x = 144,969.45 × 57,303.91
  4. Step 4: Simplify right side
    105,049.56x = 8,307,316,281.87
  5. Step 5: Solve for x
    x = 8,307,316,281.87/105,049.56
  6. Step 6: Final answer
    x = 79,079.97

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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.