Home / 130,977.28-180,740.04-77,250.04

Finding the Fourth Proportional to 130,977.28, 180,740.04 and 77,250.04

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Solution

The fourth proportional to 130,977.28, 180,740.04 and 77,250.04 is: 106,599.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,977.28 : 180,740.04 = 77,250.04 : x
  2. Step 2: Convert to fraction form
    130,977.28/180,740.04 = 77,250.04/x
  3. Step 3: Cross multiply
    130,977.28x = 180,740.04 × 77,250.04
  4. Step 4: Simplify right side
    130,977.28x = 13,962,175,319.60
  5. Step 5: Solve for x
    x = 13,962,175,319.60/130,977.28
  6. Step 6: Final answer
    x = 106,599.98

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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.