Home / 130,788.66-180,494.28-77,075.94

Finding the Fourth Proportional to 130,788.66, 180,494.28 and 77,075.94

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Solution

The fourth proportional to 130,788.66, 180,494.28 and 77,075.94 is: 106,368.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,788.66 : 180,494.28 = 77,075.94 : x
  2. Step 2: Convert to fraction form
    130,788.66/180,494.28 = 77,075.94/x
  3. Step 3: Cross multiply
    130,788.66x = 180,494.28 × 77,075.94
  4. Step 4: Simplify right side
    130,788.66x = 13,911,766,295.62
  5. Step 5: Solve for x
    x = 13,911,766,295.62/130,788.66
  6. Step 6: Final answer
    x = 106,368.29

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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.