Home / 153,310.03-211,574.80-85,331.35

Finding the Fourth Proportional to 153,310.03, 211,574.80 and 85,331.35

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Solution

The fourth proportional to 153,310.03, 211,574.80 and 85,331.35 is: 117,761.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,310.03 : 211,574.80 = 85,331.35 : x
  2. Step 2: Convert to fraction form
    153,310.03/211,574.80 = 85,331.35/x
  3. Step 3: Cross multiply
    153,310.03x = 211,574.80 × 85,331.35
  4. Step 4: Simplify right side
    153,310.03x = 18,053,963,309.98
  5. Step 5: Solve for x
    x = 18,053,963,309.98/153,310.03
  6. Step 6: Final answer
    x = 117,761.14

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1.5x scale

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.