Home / 130,051.69-179,479.07-72,693.97

Finding the Fourth Proportional to 130,051.69, 179,479.07 and 72,693.97

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Solution

The fourth proportional to 130,051.69, 179,479.07 and 72,693.97 is: 100,322.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,051.69 : 179,479.07 = 72,693.97 : x
  2. Step 2: Convert to fraction form
    130,051.69/179,479.07 = 72,693.97/x
  3. Step 3: Cross multiply
    130,051.69x = 179,479.07 × 72,693.97
  4. Step 4: Simplify right side
    130,051.69x = 13,047,045,766.74
  5. Step 5: Solve for x
    x = 13,047,045,766.74/130,051.69
  6. Step 6: Final answer
    x = 100,322.00

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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.