Home / 103,514.90-155,272.35-70,053.80

Finding the Fourth Proportional to 103,514.90, 155,272.35 and 70,053.80

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Solution

The fourth proportional to 103,514.90, 155,272.35 and 70,053.80 is: 105,080.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,514.90 : 155,272.35 = 70,053.80 : x
  2. Step 2: Convert to fraction form
    103,514.90/155,272.35 = 70,053.80/x
  3. Step 3: Cross multiply
    103,514.90x = 155,272.35 × 70,053.80
  4. Step 4: Simplify right side
    103,514.90x = 10,877,418,152.43
  5. Step 5: Solve for x
    x = 10,877,418,152.43/103,514.90
  6. Step 6: Final answer
    x = 105,080.70

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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.