Home / 102,400.09-153,630.37-52,515.13

Finding the Fourth Proportional to 102,400.09, 153,630.37 and 52,515.13

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Solution

The fourth proportional to 102,400.09, 153,630.37 and 52,515.13 is: 78,788.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,400.09 : 153,630.37 = 52,515.13 : x
  2. Step 2: Convert to fraction form
    102,400.09/153,630.37 = 52,515.13/x
  3. Step 3: Cross multiply
    102,400.09x = 153,630.37 × 52,515.13
  4. Step 4: Simplify right side
    102,400.09x = 8,067,918,852.50
  5. Step 5: Solve for x
    x = 8,067,918,852.50/102,400.09
  6. Step 6: Final answer
    x = 78,788.20

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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.