Home / 153,110.97-211,300.17-85,134.92

Finding the Fourth Proportional to 153,110.97, 211,300.17 and 85,134.92

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Solution

The fourth proportional to 153,110.97, 211,300.17 and 85,134.92 is: 117,490.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,110.97 : 211,300.17 = 85,134.92 : x
  2. Step 2: Convert to fraction form
    153,110.97/211,300.17 = 85,134.92/x
  3. Step 3: Cross multiply
    153,110.97x = 211,300.17 × 85,134.92
  4. Step 4: Simplify right side
    153,110.97x = 17,989,023,597.19
  5. Step 5: Solve for x
    x = 17,989,023,597.19/153,110.97
  6. Step 6: Final answer
    x = 117,490.10

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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.