Home / 153,116.29-211,300.29-85,131.13

Finding the Fourth Proportional to 153,116.29, 211,300.29 and 85,131.13

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Solution

The fourth proportional to 153,116.29, 211,300.29 and 85,131.13 is: 117,480.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,116.29 : 211,300.29 = 85,131.13 : x
  2. Step 2: Convert to fraction form
    153,116.29/211,300.29 = 85,131.13/x
  3. Step 3: Cross multiply
    153,116.29x = 211,300.29 × 85,131.13
  4. Step 4: Simplify right side
    153,116.29x = 17,988,232,457.03
  5. Step 5: Solve for x
    x = 17,988,232,457.03/153,116.29
  6. Step 6: Final answer
    x = 117,480.85

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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.