Home / 180,555.03-249,162.87-99,980.84

Finding the Fourth Proportional to 180,555.03, 249,162.87 and 99,980.84

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Solution

The fourth proportional to 180,555.03, 249,162.87 and 99,980.84 is: 137,971.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,555.03 : 249,162.87 = 99,980.84 : x
  2. Step 2: Convert to fraction form
    180,555.03/249,162.87 = 99,980.84/x
  3. Step 3: Cross multiply
    180,555.03x = 249,162.87 × 99,980.84
  4. Step 4: Simplify right side
    180,555.03x = 24,911,511,793.60
  5. Step 5: Solve for x
    x = 24,911,511,793.60/180,555.03
  6. Step 6: Final answer
    x = 137,971.85

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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.