Home / 136,779.12-205,166.52-70,180.80

Finding the Fourth Proportional to 136,779.12, 205,166.52 and 70,180.80

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Solution

The fourth proportional to 136,779.12, 205,166.52 and 70,180.80 is: 105,270.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,779.12 : 205,166.52 = 70,180.80 : x
  2. Step 2: Convert to fraction form
    136,779.12/205,166.52 = 70,180.80/x
  3. Step 3: Cross multiply
    136,779.12x = 205,166.52 × 70,180.80
  4. Step 4: Simplify right side
    136,779.12x = 14,398,750,506.82
  5. Step 5: Solve for x
    x = 14,398,750,506.82/136,779.12
  6. Step 6: Final answer
    x = 105,270.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.