Home / 153,348.69-211,618.91-85,365.54

Finding the Fourth Proportional to 153,348.69, 211,618.91 and 85,365.54

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Solution

The fourth proportional to 153,348.69, 211,618.91 and 85,365.54 is: 117,803.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,348.69 : 211,618.91 = 85,365.54 : x
  2. Step 2: Convert to fraction form
    153,348.69/211,618.91 = 85,365.54/x
  3. Step 3: Cross multiply
    153,348.69x = 211,618.91 × 85,365.54
  4. Step 4: Simplify right side
    153,348.69x = 18,064,962,526.36
  5. Step 5: Solve for x
    x = 18,064,962,526.36/153,348.69
  6. Step 6: Final answer
    x = 117,803.17

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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.