Home / 153,110.85-211,304.76-85,133.49

Finding the Fourth Proportional to 153,110.85, 211,304.76 and 85,133.49

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Solution

The fourth proportional to 153,110.85, 211,304.76 and 85,133.49 is: 117,490.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,110.85 : 211,304.76 = 85,133.49 : x
  2. Step 2: Convert to fraction form
    153,110.85/211,304.76 = 85,133.49/x
  3. Step 3: Cross multiply
    153,110.85x = 211,304.76 × 85,133.49
  4. Step 4: Simplify right side
    153,110.85x = 17,989,111,672.41
  5. Step 5: Solve for x
    x = 17,989,111,672.41/153,110.85
  6. Step 6: Final answer
    x = 117,490.77

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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.