Home / 103,514.40-155,271.60-70,053.30

Finding the Fourth Proportional to 103,514.40, 155,271.60 and 70,053.30

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Solution

The fourth proportional to 103,514.40, 155,271.60 and 70,053.30 is: 105,079.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,514.40 : 155,271.60 = 70,053.30 : x
  2. Step 2: Convert to fraction form
    103,514.40/155,271.60 = 70,053.30/x
  3. Step 3: Cross multiply
    103,514.40x = 155,271.60 × 70,053.30
  4. Step 4: Simplify right side
    103,514.40x = 10,877,287,976.28
  5. Step 5: Solve for x
    x = 10,877,287,976.28/103,514.40
  6. Step 6: Final answer
    x = 105,079.95

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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.