Home / 153,111.22-211,300.51-85,135.17

Finding the Fourth Proportional to 153,111.22, 211,300.51 and 85,135.17

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Solution

The fourth proportional to 153,111.22, 211,300.51 and 85,135.17 is: 117,490.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,111.22 : 211,300.51 = 85,135.17 : x
  2. Step 2: Convert to fraction form
    153,111.22/211,300.51 = 85,135.17/x
  3. Step 3: Cross multiply
    153,111.22x = 211,300.51 × 85,135.17
  4. Step 4: Simplify right side
    153,111.22x = 17,989,104,839.94
  5. Step 5: Solve for x
    x = 17,989,104,839.94/153,111.22
  6. Step 6: Final answer
    x = 117,490.44

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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.