Home / 130,386.40-179,927.04-80,075.68

Finding the Fourth Proportional to 130,386.40, 179,927.04 and 80,075.68

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Solution

The fourth proportional to 130,386.40, 179,927.04 and 80,075.68 is: 110,500.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,386.40 : 179,927.04 = 80,075.68 : x
  2. Step 2: Convert to fraction form
    130,386.40/179,927.04 = 80,075.68/x
  3. Step 3: Cross multiply
    130,386.40x = 179,927.04 × 80,075.68
  4. Step 4: Simplify right side
    130,386.40x = 14,407,780,078.39
  5. Step 5: Solve for x
    x = 14,407,780,078.39/130,386.40
  6. Step 6: Final answer
    x = 110,500.64

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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.