Home / 130,386.16-179,926.68-80,075.44

Finding the Fourth Proportional to 130,386.16, 179,926.68 and 80,075.44

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Solution

The fourth proportional to 130,386.16, 179,926.68 and 80,075.44 is: 110,500.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,386.16 : 179,926.68 = 80,075.44 : x
  2. Step 2: Convert to fraction form
    130,386.16/179,926.68 = 80,075.44/x
  3. Step 3: Cross multiply
    130,386.16x = 179,926.68 × 80,075.44
  4. Step 4: Simplify right side
    130,386.16x = 14,407,708,068.74
  5. Step 5: Solve for x
    x = 14,407,708,068.74/130,386.16
  6. Step 6: Final answer
    x = 110,500.29

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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.