Home / 153,045.12-211,198.80-88,509.48

Finding the Fourth Proportional to 153,045.12, 211,198.80 and 88,509.48

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Solution

The fourth proportional to 153,045.12, 211,198.80 and 88,509.48 is: 122,141.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,045.12 : 211,198.80 = 88,509.48 : x
  2. Step 2: Convert to fraction form
    153,045.12/211,198.80 = 88,509.48/x
  3. Step 3: Cross multiply
    153,045.12x = 211,198.80 × 88,509.48
  4. Step 4: Simplify right side
    153,045.12x = 18,693,095,964.62
  5. Step 5: Solve for x
    x = 18,693,095,964.62/153,045.12
  6. Step 6: Final answer
    x = 122,141.08

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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.