Home / 130,382.06-179,955.04-76,697.70

Finding the Fourth Proportional to 130,382.06, 179,955.04 and 76,697.70

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Solution

The fourth proportional to 130,382.06, 179,955.04 and 76,697.70 is: 105,859.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,382.06 : 179,955.04 = 76,697.70 : x
  2. Step 2: Convert to fraction form
    130,382.06/179,955.04 = 76,697.70/x
  3. Step 3: Cross multiply
    130,382.06x = 179,955.04 × 76,697.70
  4. Step 4: Simplify right side
    130,382.06x = 13,802,136,804.83
  5. Step 5: Solve for x
    x = 13,802,136,804.83/130,382.06
  6. Step 6: Final answer
    x = 105,859.18

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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.