Home / 140,779.04-194,275.04-77,116.80

Finding the Fourth Proportional to 140,779.04, 194,275.04 and 77,116.80

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Solution

The fourth proportional to 140,779.04, 194,275.04 and 77,116.80 is: 106,421.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,779.04 : 194,275.04 = 77,116.80 : x
  2. Step 2: Convert to fraction form
    140,779.04/194,275.04 = 77,116.80/x
  3. Step 3: Cross multiply
    140,779.04x = 194,275.04 × 77,116.80
  4. Step 4: Simplify right side
    140,779.04x = 14,981,869,404.67
  5. Step 5: Solve for x
    x = 14,981,869,404.67/140,779.04
  6. Step 6: Final answer
    x = 106,421.16

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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.